Rear differential gasket vs rtv. Fluid 75W90 or 80W90 if higher mileage.

Rear differential gasket vs rtv Loosen bolts I had to spray a bit of WD40 around the bolts to get them off. Ideal for wide bolt patterns found in oil pans, timing covers, valve covers, transmission pans, and differential covers. Should I just use the standard paper gasket? Or add high temp RTV and the gasket, or Just RTV? What are your opinions? Feb 20, 2019 · Learn how to use RTV to make a rear differential gasket, water-pump gasket, oil pan gasket, thermostat gasket, valve cover gasket, or whatever needs a gasket but you can’t find a gasket. Plus, if you have gasket makers on hand, you don’t lose time waiting for a part delivery. May 26, 2022 · The pan bolts heads can strip rounding off the corners, I had to replace 2. No RTV or anything else to assist in sealing. Using a differential cover gasket or RTV. I noticed that in the shop manual it does not show a gasket, and only mentions using sealant. If you have the felt type gaskets like the part stores sell then you can use a thin film of rtv if you want. However, if either of your differentials have been serviced Dec 4, 2015 · The rear diff has been leaking ever since I got the van but it has got worse. Jun 13, 2015 · I'm redoing my rear end - changing axle seals & bearings. I know RTV is tried and true and works pretty much 100% of the time, but it's pain in the ass to clean every time you do the service. Nov 3, 2016 · I got tired of not being able to get a good seal with RTV (possibly because Im somewhat impatient), so right now my rear diff has a lubelocker gasket, and its working well so far. Fluid 75W90 or 80W90 if higher mileage. Does anyone have advice on what's recommended? Feb 5, 2016 · Originally Posted By: ford46guy permatex makes a special rtv product for rear diffs. 00 for one job. So, Ford recommends RTV. Jun 2, 2014 · Gaskets (if gasket paper) are porous and will attract moisture- especially if you're doing anything off-road and plan on dipping your hot diff in water. Discover the ultimate solution for a leak-free differential cover. Permatex Black RTV Gasket Makers are highly flexible for use on dissimilar metals that heat and cool at different rates. It offers a reliable seal and is simple to install, making it a worthwhile upgrade for your vehicle. I saw 2 videos on youtube that show the process. My question is should I avoid using the gasket, use the gasket AND sealant, or Nov 20, 2018 · Watch as our specialists outline the advantages of sealing a differential cover with a Fel-Pro® differential cover gasket instead of RTV. I know that a lot of people might disagree with me on this one but that's ok. I removed the rear cover, cleaned it up and used RTV silicone to make a new gasket, and that’s what this post will cover. Shop for Permatex Green RTV Differential Gear Oil Gasket Maker 3oz with confidence at AutoZone. 5 Rear Diff Gasket VS RTV - Has anyone ever used a gasket on the rear differential? How did you like it? Mar 30, 2006 · I have already done a search on this topic prior to posting. its ok to use Royal Purple Max Gear 75w90 Gear Oil on my 1998 gt ? hayness manual say I should use SAE 80W-90GL fluid. Ford 5. just make sure you clean the mounting surfaces really well, a paint scraper, wire brush and brake cleaner work really well for this. Archived post. But I think right stuff gray properly work better since it fill up those deep mark up Jun 10, 2022 · RTV silicone is a great adhesive for many materials, but it is not a good sealant for gaskets. On a thick mounting flange like is on these diffs, RTV should be fine. uses no gasket or RTV. Any thoughts should I look somewhere else for the gasket or just use the black silicone. what's the best sealant for something like this? Just RTV silicone? or is there something better? Mike Optimum Red: All exhaust and turbo applications If the Optimum series is not available, Ultra is great. Nov 21, 2017 · I'm changing the rear Differential this weekend, What RTV is everyone using these days for the gasket? I see that Permatex makes a green differential gasket maker now. Is there a preferred way to prevent leaks? Dec 14, 2002 · Hello, Ive seen lots of applications where RTV is used for sealing a differential. Is the grey more ply-able compared to the black? I just resealed mine yesterday and was waiting for it to dry for 24 hours before putting in the fluid but I used some hi-temp Ultra Black RTV Rear differential cover - RTV in addition to gasket or not? I just put the cover back on with only the gasket. Dealer ordered me the rear "gasket", but it's Jan 6, 2005 · No, RTV is not necessary when using the Fel-Pro gasket. Also replace the pan with the drain plug type. But I have little faith in Learn how to use RTV to make a rear differential gasket, waterpump gasket, oil pan gasket, thermostat gasket, valve cover gasket, or whatever needs a gasket but you cant find a gasket. 8 axle owners. They can eliminate Jan 22, 2025 · SILVERADO CREW LT TRAILBOSS 4WD with 2. NO leaks. For this reason, you should always use a gasket if you are using RTV silicone to seal a joint. Thanks in advance. Make that 60 beaver bucks Jul 9, 2007 · Since my car not running right now, Im order some royal purple tranny and rear differential fluid. the first time i used the paper ( looking) gasket with whatever silicone they gave me with it. I purchased all the RTV gasket makers and the supplies used for the testing to ensure fair and unbiased reviews. /lbs. I have the gasket, but was wondering if I should put RTV on both sides, one side, or it doesnt matter? Mar 17, 2011 · What sealant should I use for the threads of my differential fill and drain plugs? Changing the fluid in my front Differential with 75W90 Gear Lube. I see though some gaskets do work well. " Dec 14, 2015 · I'm going to be changing the oil and gasket on my rear differential on my 2006 Libby. Everyone just talks about RTV or "sealant. It is important to have a flexible gasket with dissimilar metals to avoid tearing & over-expansion. I think if you use RTV and cure/seal it right there will be no issues but the lubelocker gasket seems to be an easier solution/install. Apr 17, 2023 · Good evening all, I decided to remove my differential cover to replace the mount bushing. The cooler water on the hotter diff metal will draw in moisture, RTV will get you a narrower gap. Then, I happened to think that I may need some silicone gasket maker, so I asked the guy at autozone and he recommmended the heat resistant RTV silicone (red). RTV? - Hi, Can you guys confirm that this gasket is a suitable replacement for RTV if I do a rear diff fluid swap? This is from Ford?s parts website and I entered 2018 F150. Aug 28, 2023 · 1st timer changing the diff fluid in my 69. You didn't specify whose recommendation you were looking for. you prob have the wrong gasket. Please don't vote if you haven't done the job yourself. Do i use both or just RTV to seal it? Nov 12, 2019 · I need to replace Pinon and Carriers bearings. Be sure to check if its an open differential (axle code xx) or limited slip (R x), limited slip needs friction modifier to function properly Dec 21, 2008 · RTV I use either RTV and gasket or RTV only, depending on if I have the paper/cork gasket. Will stick the gasket to the housing and also help seal a bit. Mar 5, 2009 · As mentioned above, some do, some don't use a gasket, some only use RTV or a gasket+sealer. Is Black Permatex RTV the safest option? Archived post. I don't really feel like messing with RTV if I don't have to. . 7L turbo and 8 speed transmission. Experience the Fel-Pro Difference and see why we are The Gaskets Professionals Trust™. Sep 17, 2015 · Changing my differential fluid. Or a tube of RTV. I've yet to add fluid since I wanted to ask first if it's a good idea to also put a bead of RTV Black, or if the gasket will suffice. Product Description Permatex Gear Oil RTV Gasket Maker is a specialty gasket maker that is specially formulated to withstand the harsh gear oil environment found in differentials and transfer cases, ensuring a leak-proof seal. Apr 10, 2007 · I have 16000 miles now and was going to change out the diff fluid with synthetic. Any suggestions???? Mar 17, 2024 · Differential gaskets vs rtv? Rtv and intake gasketNeutral rtv gasket maker Should i put rtv on intake manifold gasket?High-temp 3+3 type red color rtv silicone gasket maker 85g with 2g. That being the case, what’s best to seal the rear-end back up afterwards? Just buy a new gasket, or use some RTV? If I go RTV, will I have to wait and let it cure before I put the fluid in? May 20, 2020 · AMC 20 question. when installing the diff cover do you use just the gasket on the inner lip or do you also use RTV? Or just RTV? Dodge Ram Mopar OEM replacement differential gaskets are a perfect fit and provide a great seal to help prevent fluid leaks. I used a Fel-Pro on my Chevy truck a year ago with Jan 24, 2008 · My Dad wants me to change his Differential Fluid, when I have done this on my car I have used the Red RTV Sealant, is this the stuff to use, or should I use the Black RTV Sealant. WHAT IS A DRIVETRAIN GASKET? Drivetrain gaskets—including automatic transmission pan gaskets, differential cover gaskets and rear axle flange gaskets—are a vital part of a vehicle’s sealing system. I have seen other threads on 3500's that mentioned that the rear differential gasket was reusable. Using this Does the rear differential cover have a gasket or just use rtv? The conversation discusses the use of Lubelocker gasket versus RTV sealant for differential repairs, with most commenters recommending Sep 23, 2023 · General F150 Discussion - Permatex: ultra black 82180 vs gear oil (green) 81182 (rear diff differential ) - Ultra black specifically says it?s good for differential covers and resistant to oils and shop fluids. 42. Seeing how they are over RTV. Unless they're leaking, leave them alone. I probably should've asked before, but I went ahead and got black RTV and paper gaskets. com. When I the results showed an actual differential gasket for my F150 made by Felpro. Don’t use any additional sealant on those gaskets. Most pros use RTV, and that is what is done in the factory. This is the first vehicle I've owned that hasn't had drain plugs on the differential so I'm not used to the process of scraping off the RTV and reapplying it. Above all, make sure the surface has been wiped clean with a solvent to remove the oil film. 8 rear axle with a Ford SVO/TA Performance Rear Axle Girdle - seals perfectly, and is easy to disassemble if the need arises. My auto tech teacher in high school said that the gasket is plenty sufficient. When I changed the fluid out, I used the orange colored high temp RTV silicone with good success. 8. When the factory seals the rear cover on with RTV the housing is facing upwards for the machine to apply it not vertical like in the vehicle being Sep 23, 2023 · Maintenance Shop - Differential gasket instead of rtv sealant. Oct 22, 2018 · I'm fixing to change out the differential fluid for the first time. Aug 30, 2010 · Just changed mine: rtv for both diff covers and 80w90 gear lube with some ltd slip additive in the rear for me. Torqued to 35,70,to final 105 in. I prefer high tack for stuff like that though. Jul 25, 2024 · 1997 - 2003 F150 - RTV or gasket? - I’ve been deciding on wether to just use RTV gasket maker or use an actual gasket on my rear diff and transmission pan. Is it OK to use RTV silicon or do I need to find a gasket for installation? While I'm here what's the best oil for a stock 12 bolt 331 non-posi rear? As always, Thanks for any replies! May 23, 2020 · Anyone using the Flepro front and Rear diff gaskets for our trucks? I bought both front and rear as I’m changing out the diff oils as soon as they arrive. For the sake of clarity the poll is designed to ask how you actually resealed your differential(s) ie: what FIPG, RTV or gasket was used. Jun 16, 2021 · 2015 - 2020 Ford F150 - Rear differential gasket vs. I know most folks here go with RTV, but does anybody have experience with the gaskets? Can I use both? Any input appreciated. There's even a Ford part number for the ultimate recommendation. It was about $20 and a perfect fit. I understand there are two different types of differential manufacturers that are distinguishable by the cover geometry/features. RTV? - Hi, Can you guys confirm that this gasket is a suitable replacement for RTV if I do a rear diff fluid swap? Sep 11, 2014 · 1999 - 2016 Super Duty - 10. Should I use just the silicone only for the differential cover OR use a gasket AND silicone. I used a Fel-Pro gasket both times I serviced my differential, and never used the RTV, no leaks at all. Jan 15, 2024 · 2015 - 2020 Ford F150 - Rear differential gasket vs. My truck is a 2018 SCREW 4x4 3. Because gear oil has friction modifiers that break down normal RTV and cause leaking, this specialty silicone has been tested to OEM specifications to ensure complete Nov 4, 2002 · Hello, I just pulled my Rear Diff cover to change the fluid, and I'm about to replace it. Apr 9, 2008 · I changed the fluid in my 09 f150 rear diff on Friday. just using RTV sealant. Jun 16, 2015 · I've been going through all of my fluids & changing everything (100K miles). Using this method will help make sure you seal whatever you are working on, properly. Jan 12, 2008 · I've cleaned up my non-functioning rear locking third and don't have a paper gasket. Gear oil has friction modifiers that break down normal RTV and cause leaking, but this specialty silicone has been tested to Original Equipment Manufacturer (OEM) specifications to ensure complete Oct 9, 2005 · I was just wondering how most people seal up the differential. An alternative to RTV that i used was the mag-hytech gasket. These materials include: Printoseal® sealing beads (for added sealing assurance) Blue Stripe® paper (high-quality, conformable; faster and easier than RTV, but just Dec 13, 2001 · I just bought a rear diff cover and it didn't come with a gasket. I need the best RTV that will allow for no leaks in the rear diff cover and what color will it be? Dec 31, 2017 · Originally Posted by BrianF Currently running a blue Fel-Pro on the rear diff of my C1500. The FSM calls for new new plugs for the drain and refill hole. Dec 6, 2016 · 1999 - 2016 Super Duty - Rear differential sealant - I need to replace the gear oil in the rear differential on my Ford F -350 and was wondering what the best sealer to use. Mar 30, 2019 · Planning to change the fluid on both diffs (2002 TJ) soon and wanted to get everyone's thoughts on the 3 main options for differential cover seals. This gasket maker meets performance specs of OE silicone gaskets and is OEM specified. I want to change the front/rear differential fluid and in the process also change the differential gaskets. If you really want to avoid gaskets and RTV get an aftermarket cover with a drain hole. If you use RTV silicone to adhere two surfaces together, the RTV will not create an airtight seal and may allow air and moisture to seep through. Copper Spray-A-Gasket Hi-Temp (Copper) - Used to help seal such things as metal head gaskets. The reason OE use a lot of RTV is ease of automated application on perfectly clean and dry surfaces and the fact that the parts may not see fluids for a long time. Apr 22, 2008 · I'm having a mechanic buddy help me swap out my 3. and rtv should work just fine, but def. I'm doing my typical flush-every-fluid regimen that happens whenever I get myself a new (used) car. If I need to have a quick turnaround job, The Right Stuff is key! I will no longer smooth out my RTV, just a simple continuous spaghetti noodle. the green makes reference to ?resistant to friction modifier? and appropriate for differential covers has Feb 4, 2025 · Video is going to show you the proper way to use RTV to make your own gasket and to seal something such as a rear differential your oil pan a thermostat gasket if you're going to use it in a area that has high temperatures get high temperature RTV so just take the cap puncture the top of the RTV like so now you're going to cut this to the desired thickness so I'm going to try this thickness Dec 2, 2009 · is the gasket for the dana 44a? cuz they don't make a gasket for that. 00 tube will seal probably 15 engines or 30 rear ends. What is the consensus of this forum on the need for "RTV" type silicone to ensure no leaks For gasket you can purchase cork style one or use RTV gasket maker. I cleaned up the cover surface by scraping off the old paper gasket, using cleaners on the surface, readied the new OEM gasket, and then realized how very thin the gasket is, and decided I should get insight on if I should be applying RTV to the mating surface, or to the gasket, or should apply ONLY RTV Mar 18, 2005 · The original design uses a gasket (that is substantially thicker than several sheets of paper) to seal the joint. Mike and John review the advantages of installing a Fel-Pro differential cover gasket rather than using RTV. Is the grey more ply-able compared to the black? I just resealed mine yesterday and was waiting for it to dry for 24 hours before putting in the fluid but I used some hi-temp Ultra Black RTV Apr 21, 2008 · I've read a couple of posts that mention using the grey RTV to seal the diff cover to the housing. Jan 11, 2006 · I use Hylomar on difficult gaskets (e. I bought a felpro gasket, but I’m having second thoughts as a lot of people seem to swear by RTV. Feb 16, 2011 · What I HATE about RTV is a 14. Dec 13, 2020 · It didn't come with a gasket originally; you could make your own using the differential RTV, or go down to the parts store and get a rear diff gasket for a Ford 8. Most pro's rather use a gasket if one is available. RTV for the rear Differential??? A long time ago I learned to make a nice even bead around one side of the mating surface then let it set for a while which creates a nice "gasket. I purchased it almost a year ago. For the cover, is just the paper gasket enough or do I need a bead of rtv? Jun 22, 2006 · Clutch, Transmission, Differential, Axle & Transfer Case - Best RTV to use for Diff Cover??? - My 1997 F150 with a 9. Jul 7, 2025 · Overall, the Rear Differential Cover Gasket F880 is a solid choice for Ford 8. It has the Dana 30 front and Dana 35 rear. I did wait about an hour after replacing the cover to allow the gasket to set before I poured the new fluid in. Just cleaned the surface up, removed the old factory RTV, bolted it up and filled the diff. Gasket makers and flange sealants have tremendous reliability. The description says 2014-2020 F-150 with 9. Replacing A Pinion Seal With 8 Detailed Steps What Tools Do You Need? Mar 24, 2010 · I'm still working towards changing rear axle fluid and eventually a rebuild from the sounds of it. And, when compared to a traditional gasket, the material costs for gasket makers are much less. It has been 19+ months and around 23k miles since installing the Fel-Pro gasket and the diff is dry. Vehicle is a 1999 XJ. I tried to post this in the tech articles May 19, 2019 · Going to drain rear diff and refill with new oil as it may have never been changed. As the name implies, this is a spray on sealant. 0 water pump - also used a Victor Reinz steel sandwich gasket for that application) with great success, including a Fel-Pro differential gasket for a Ford 8. Got a lot to learn But my question this moment is which gasket maker material is recommended? I went to the store and bought Permatex Blue RTV and Permatex Black because those made the most Jan 8, 2016 · I want to change my rear diff fluid and was wondering if the diff gasket is still reuse able on the 2015 trucks like it was on the 3rd and early 4th gen trucks? Mar 29, 2023 · walmart. Product Description Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker is a fast-curing, sensor safe, low odor, non-corrosive formula that retains high flexibility, and oil resistance properties through use of a patented adhesion system. good stuff. After testing multiple sealants, I can confidently say this is the best one. 8 12 bolt gasket? I see a lot of 10 bolt listing but none for the Super 8. 8L) has a leaking right rear axle seal. Is this true on the 2500? Apr 25, 2025 · Thanks to RTV silicone’s flexibility, it’s excellent for components that experience differential expansion and contraction, maintaining a seal under changing temperatures and pressures. So I decided to pull cover and do a proper clean-out & refill. Should I use a paper gasket or apply gasket maker from a tube? And if I use gasket maker, what brand and type is compatible with my gear oil? What RTV is good for a rear differential with 75w-90 synthetic? I’ve heard stories of gear oil eating away RTV when the wrong one is used. Was easier thn cleaning it. Mar 28, 2020 · My 2003 tj has been sitting for 8 years and im getting it back up and running so question for you cats is for the differential gasket do you prefer to order the stock/better gasket or do you use form-a-gasket? Pros vs. May 30, 2011 · I believe the paper gasket is used to seal the differential carrier (3rd member) to the housing due to the alignment tolerances needed between the differential carrier and the axles. 91's to 4. These important gaskets keep fluids where they belong—lubricating drivetrain internal parts. May 2, 2015 · When changing differential fluid, you have the option of using RTV sealant or a gasket. Would Bot VerificationVerifying that you are not a robot Mar 31, 2009 · Permatex Gear Oil RTV Gasket Maker is specially formulated to withstand the harsh gear oil environment found in differentials and transfer cases. Ive also seen notice where a good long amount of time should be spent allowing the RTV to cure before applying new lube. Can I use RTV instead of a gasket for the rear differential cover, or would that cause problems down the road? Dec 10, 2021 · I use a degreasing solvent on both the cover plate and rear end mounting surface to remove any contaminants. I have never used a reusable gasket Isn't Indian head shellac the the product for that job? May 13, 2022 · 2009 - 2014 Ford F150 - Rear Differential-Gasket or No Gasket - Background: I have a 2011 Screw 5. 179k miles. I picked up a Fel-Pro paper gasket for the 8. If you don't want to wait around for an RTV like Ultra Black to cure, look for Permatex Right Stuff Feb 20, 2019 · I plan to replace my rear differential cover when I change the fluid (it's pretty rusty). I' ve been using the old Indian Glue lately coating the side of the gasket that goes on the rear end first put it on and then coat the cover side of the gasket and then mount the cover. 8 at Pep Boys, but I did some searches and everyone seems to just use RTV. Get it now! Jun 24, 2023 · Getting ready to install new diff in '67 8 inch and getting mixed advice on using a paper gasket vs. RTV? - Hi, Can you guys confirm that this gasket is a suitable replacement for RTV if I do a rear diff fluid swap? Oct 13, 2010 · Coat the gasket with a thin layer of RTV, wait a few minutes, and then apply while slightly tacky. O'Reillys sells Fel-Pro gaskets for both. Originally Posted By: barkingspider I prefer gasket or gasket with a lil bit of rtv on both sides of the gasket, zero problems. Lube Locker gaskets are a popular choice, as they are reusable and eliminate the need to scrape off old RTV. Great stuff. In this episode of Permatex Pro Tips it's all about Differential Gaskets. Same thing for me with my F150. I went to ford dealer and asking for gasket for my rear diff Jun 9, 2007 · Im attempting to seal my rear differential cover for the second time on my 99 super duty 350. I believe the Blue RTV Sealant is for valve covers, I have never used the Blue RTV Sealant on a Differential Cover. this time i was told i dont need the gasket, a quality liquid gasket The variety of drivetrain sealing solutions requires a variety of materials. com You can use either a paper gasket or RTV, but don't use both. Is silicone rtv ok by itself, or do I need the thickness of the paper gasket to keep things in proper alignment? Jun 17, 2009 · There are way too many RTV choices, colors, and all that crap that is just confusing me. Leaks from drivetrain gaskets may lead to premature wear and possibly more expensive repairs. Feb 21, 2014 · I am planning on changing the fluid in my 2013 2500 rear differential. But you only do one and the rest hardens up in the tube within 4 months, so off you go spending ANOTHER 14. Anyways, I hope you enjoy this video. Which cover gasket should be used paper or metal based rubber gasket? Much thanks! Jan 20, 2025 · Where can I get an 8. 4L FX4 automatic Hi all, I am wondering what?s a good way/ right way to put a diff cover back on. Hey all, Recently acquired a '99 Sport with a Dana 30 up front and 35 in the rear. Following the leak, you might hear a humming noise getting louder with speed. Apr 21, 2008 · I've read a couple of posts that mention using the grey RTV to seal the diff cover to the housing. I don't know the condition or type of the existing gasket so I will plan to replace it as well. Thoughts? Feb 22, 2015 · I am preparing to re-install the rear differential cover on my 1995 Ram 2WD, and have already purchased a Fel-pro gasket. One video shows the guy just squeezing a bead of RTV around the cover lip while the other video shows the guy squeezing it and then spreading it with his finger so it is spread He used RTV Gasket Silicone Maker that resists gear oil. Videos that I have watched show the use of a silicone product in addition to the new gasket. No RTV Jul 24, 2010 · The preview owner must using a screwdriver or something that he put bunch of deep mark into the rear diff housing . I called and no one has the gaskets, they all say just use black silicone. I personally prefer just a gasket and no sealer, and after driving the car for a while, I go back and re-tighten all the bolts. Then went in to buy some more for my rear differential and was told (O'Reilly's automotive) that I shouldn't use RTV Ultra Black because the gear oil will eat it away. This gasket also affects the ultimate position of the diff in relation to the axle housing and axle shafts. How To Use RTV And Properly Make A Gasket! Jul 12, 2015 · High Tack Spray-A-Gasket (Color unknown - Assume black) - Same as High Tack, but in a spray form. Used this: RTV gasket I let it set for an hour after reinstalling the cover before adding the fluid and friction modifier. I was on NAPAOnline website ordering rear shocks (another thread in this forum) I searched for the RTV Gasket Sealant. I mainly don’t want to wait around for the RTV to dry, and the gasket seems more “idiot proof”. Mar 16, 2000 · What does everyone reccommend installing when replacing the rear diff gridle? I have heard just the gasket, just the silicone or both What Type of silicone should I use if that is the better way? It both is best, do you place silicone on both sides of the gasket or just one side? Aug 12, 2024 · The oem rubber gaskets are reusable if they are in good shape. By omitting the gasket you are positioning the diff further into the axle housing than it was originally intended to be. Do you put both rtv and a gasket on a rear diff cover?Permatex 81160 high temp red rtv silicone gasket in vendita! Nov 16, 2010 · A lubelocker gasket solved my leaking differential issue. Feb 19, 2013 · I'm changing the gear oil on the front and rear axles on my grandpa's 1996 Jeep Cherokee tomorrow. I was going to use felpro gasket . Jun 16, 2023 · I am draining and refilling the rear differential fluid. Get yours online today and pick up in store. I bought a Felpro paper gasket at autozone. Dec 21, 2012 · Best sealant for the dreaded pinion spline diff leak So I've read every thread I can find on this topic. get that bolt fixed. 75? axel. Sealed perfectly. Apr 17, 2012 · I went gasket and mag hytec with Adrain and dipstick. I've seen mixed information about using RTV on the gasket. Parts are just part of what we do. Replacing a differential gasket is pretty straight forward but there are a couple of potential pit falls that can lead to Apr 9, 2010 · or will rtv do the job alone? i plan on changing differential fluid this weekend. No need to use precut gaskets with RTV; just use the right RTV for application. Feb 27, 2006 · Ok, finishing up the rear this weekend hopefully. I am using RTV and not a gasket. When I put the cover back on and refill the diff, how long should the RTV cure before use? Oct 21, 2023 · Most RTV products weaken badly when subjected to oils, it has its place but generally a gasket made from the proper material for the application is a much better seal. " I just watched a video of a guy smearing the RTV all over both sides then immediately fastening it down, essentially gluing the cover to the housing. Oct 31, 2012 · I changed out the gear oil in my front differential (used synthetic) and used RTV Ultra Black for the gasket. 8 May 16, 2007 · Soon I will be replacing rear axle seals, '97 Limited Slip, and am asking for recommendations. I've got my diff cover siliconed on my race car (entry-level dirt track), and it's been perfectly fine for 4 months. Cons? Feb 22, 2016 · What are people's thoughts about gaskets vs. Not to be used with all head gaskets, as some already have sealant embedded into the outer layers. Thanks. I want to run a bead of sealant around the gasket on the rear cover. 1. Any suggestions? Dec 17, 2004 · The OEM gasket on my truck differential's was gray RTV silicone. Jul 14, 2023 · I need to change the gear oil in my 12 bolt rear-end. However, they are more expensive. Is there an issue with cleaning up the old ones with brake cleaner and then using Permatex RTV Gasket Maker? Might be able to save a few pennies. I see that some people buy pre-made gaskets and just Dec 13, 2017 · I,m just wondering if I should get a cover gasket for the rear 9 1/4 in my 1500 ram, or just use black rtv? Thanks all. PROS CONS ? - What are pros and cons of using gasket instead of rtv sealant? ( rear diff differential cover fluid gear oil change service modifier friction ) Jun 16, 2021 · 2015 - 2020 Ford F150 - Rear differential gasket vs. 2. I used the Dorman pan with drain, changed the filters, and the Lubelocker pan gasket. com/ip/Permatex-Ultra-Grey-Rigid-High-Torque-RTV-Silicone-Gasket-Maker-3oz-75191/602601102?wmlspartner=wlpa&selectedSellerId=0 Apr 12, 2017 · For a 2010 Jeep Wrangler Unlimited Sport, you have two differentials (front and rear) that likely use RTV sealant from the factory instead of gaskets. Feb 14, 2020 · The Ten Most Common Gasketing Mistakes: Gasket makers and flange sealants are great time savers to have on hand in the shop. Jun 22, 2025 · Guys, I'm restoring a 69 AMX and installing the rear diff. What should I Aug 4, 2021 · 1997 - 2003 Ford F150 - Do you put both RTV and a gasket on a rear diff cover? - 2002 F-150 5. 2015 - 2020 Ford F150 - Rear differential gasket vs. Is the RTV gasket sealant better or is it better to use an actual gasket? Jul 14, 2018 · Ford diffs have used RTV since the dawn of time, I believe. RTV? - Hi, Can you guys confirm that this gasket is a suitable replacement for RTV if I do a rear diff fluid swap? I have a 99 ranger and will be changing the rear diff fluid. Some say they are lubes, some say they are sealants, some say gaskets etc etc. Mar 7, 2011 · I have replaced the rear gear lube on GM going back a long time and I always found a gasket in place. Can anone comment on the long-term effects of not letting it cure a "long time" before Jun 8, 2009 · Now i know i have to use some of that RTV silicone to seal the rear housing when i change my gear oil but do i also need to get another paper gasket like those that come in the master install kits? i think its paper or rubber, anyways you know what i mean. 75 rearend has a very slow but always there leak from the rear diff. Feb 24, 2015 · I just fixed my leaky rear diff. He explained the friction modifiers in Royal Purple, or any friction modifiers, are highly acidic to silicone gasket makers and will break them down over time. See full list on felpro. and after a month it was leaking. 0 2wd with 113k miles on it. When I took the cover off, there were traces of RTV, no gasket. I found out my truck (2012 GMC Sierra SL 4. Oct 10, 2012 · He said not to use Ultra Black, or any other silicone based RTV gasket makers, other than Permatex Gear Oil RTV Sealant Gasket Maker (81182). World-class materials and manufacturing expertise provide Fel-Pro ® gaskets with the correct design and composition for application-specific sealing. Do the 2001 front and rear diffs take a gasket or RTV? I've never cracked mine open so I don't know, but I called a local Toyota parts counter to see if they had them and the guy said he Oct 4, 2006 · I'm installing my new 12 bolt Moser, after getting it all painted up I am ready to install the rear Moser cover. No issues at present simply maintenance. After that, I don't see leaks. I am getting ready to change rear differential fluid. For the rear differential I tried my hand pump but wasn't getting enough fluid out of the fill hole. Jan 19, 2023 · Broken Differential A damaged differential likely dislodges the seals, and a leak can be the consequence (especially a rear differential pinion seal leak). Would you use RTV sealant or a gasket on differential cover when putting all back together? Suggestions?? Tks!! Mar 3, 2008 · I’m going to be replacing my G80 with a TrueTrac this coming Saturday (fingers crossed it doesn’t asplode before then). I always replaced with a gasket, I am no fan of RTV sealants, always a mess when I use them. It will probably come with a gasket too. New comments cannot be posted and votes cannot be cast. What do you guys prefer to use: RTV sealant or just a new gasket or both? Any advice or tips for someone who has never done this on an XJ. 56's soon and I'm lining up my parts list. 5L. Thanks for any help. Apr 3, 2023 · There's a poll attached to this thread. Rear axle gear ratio is 3. Apr 23, 2006 · RTV silicone works fine for rear end gaskets. g. No leaks and it was cheap. ccizu wkj bzlx eqtupza npjavux uubfm vpinf rjivoms kxbbvxd funzasg xem zmse wjq gluevr cha