How To Install Rear Main Seal

It cheap and eazy to replace. With the seal fully seated in cavity, square up one end of the. So, everything’s cleaned up, the crank is in, and I’m trying to mount the rear main seal. 17) the Rear main has a felt outter cover on the rubber art of the seal. That said, I have never once seen a BRM rear main seal leaking, and gosh knows I've replaced more than my fair share of DMFs. in order to pull the crank, you need to remove the heads, pistons and main caps. Using the block of wood and the screwdriver, pry behind the head of the screws, alternating sides, so that the seal comes out straight. There are several ways to install Windows 10 on your PC, whether you're upgrading from Windows 7 or 8, installing a new operating system from scratch, or reinstalling a fresh version of Windows 10. I was committed now, and had to replace the upper seal. My Volvo stick shift clutch failed at 150k miles. Simple Green and some nice clean smooth rags will be suffice. I hope you're all doing well, I was just too busy with school and work to be online as much as I was. Ok, I just got the teflon rear main seal from Advance and it came with a plastic sleeve that it calls an installation tool. Important: Refer to Engine Rear Cover Replacement in SI and follow the tightening specifications and sequence. The easiest way to install hurricane straps is during the construction of the home. Tap the seal housing into the rear cover to where the bevel on the housing ends at the back part of the rear main seal surface. Remove diff cover. 19) This is the rear main seal. seems no matter how I try, end up with about 3/16ths" protruding that won't squeeze down but "mushrooms" over when I attempt to slowly snug up main cap. How do you replace the rear main seal on a 1989 Ford How do you replace a rear main oil seal in … 1984-1990 Ford Bronco II Rear Main Seal - Fel Pro, … Shop for a 1984-1990 Ford Bronco II Fel-Pro OE Replacement Rear Main Seals with a 30 FEL-PRO OE REPLACEMENT REAR MAIN SEALS 1984-1990 Ford Bronco II REAR MAIN SEAL. Before I go crazy and start pulling the pan and the trans, any advice on how to replace this seal. Ill go ahead and say I've never done a rear main seal install on an FE. Parts from the dealer will run about $40. If you dont have the specs send me a PM and ill pull it up on my computer. Bolt the retainer with the five bolts (V6) and install the dust seal. I only want to do this once, if. We love when auto parts experts come to our site and we love when car parts newbies come to our site. This turned out to be my problem after replacing the rear main 4 times. If needed replace timing gears, chains or belts & gaskets. In the 1960s, there was a "help??!!" letter to the automotive person in "Popular Science" magazine. what im wondering is how do i tell the difference between a rear main seal leak and an oil filteradapter leakthe oil filter adapter i can fix my self but i cant fix the rear main seal. Its main purpose is to seal the openings on either end of the crankshaft —the front and the rear. Please note that the entire transmission assembly must be removed before performing this procedure. 0 with the engine in the jeep?. The rear main seal is what seals the crankshaft to the engine block and keeps engine oil from leaking out around the crank. oil pan gasket. Punch two holes in the rear main seal with the center punch. No need to remove oil pan on that deal. Both are annoyances that leave the undercarriage a mess, as well as oily spots wherever the Jeep is. How do you replace the rear main seal on a 1989 Ford How do you replace a rear main oil seal in … 1984-1990 Ford Bronco II Rear Main Seal - Fel Pro, … Shop for a 1984-1990 Ford Bronco II Fel-Pro OE Replacement Rear Main Seals with a 30 FEL-PRO OE REPLACEMENT REAR MAIN SEALS 1984-1990 Ford Bronco II REAR MAIN SEAL. Rear Main Seal Leaks (Part 2) As promised in the last issue, this will explain how to replace the rear main seal on a classic ('59-'85) Chevy V8, and also how to remove the oil pan with engine in the car (Chevelle small block automatic only). That is they THOUGHT it was possible. Seal, Crankshaft, Rear Main Part Number 364692R91. You can replace the seal by just removing the rear main cap. In any event the transfer case and tranny have to come out to fix it. Fel-Pro is a trusted automotive aftermarket brand of gaskets for engine, drivetrain, cooling, fuel and exhaust system repairs. The upper seal half can be installed with crankshaft removed from engine or with crankshaft installed. Also, this engine never leaked anything. 1500's gotta breath or it will [censored] oil all over the place in protest. Shop for Dorman Engine Rear Main Seal Cover 635-518 with confidence at AutoZone. However, they said they found a leak at the rear main seal, and have quoted me $840 to fix that. It is a rigid piece, so it will follow the crank shape as it is removed. I'm not saying you should pull the tranny to check it out,but when replacing the flywheel,put sealer on. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Cannot be anything else. June 5, 2019. It says I need a instalation tool to form the seal to the shape of the crank. The Rear Main Seal is between the engines crankshaft and the flywheel, which means the transmission, must be removed to replace this part. my oil level isnt low yet so i asumed its causing me to have low oil pressure. The rear main seal keeps oil sealed inside the rear of the engine, where the crankshaft connects with the transmission. Replacing the rear main seal in your 4. Take special care to seal the top side of the top piece of trim. 20) Rear main seal removed. Holden V8 Rear Main Seal Installation. Dura Seal Head Gasket Repair is a Professional-Grade Head Gasket Sealers, Rated #1 by mechanics. A rear main seal leak is likely the most expensive oil leak any 3. unfortunately it looks like I have a leaking rear main in the 70 Dart. The hardest part of installing a new Mustang rear main seal is getting to the actual seal. My Volvo stick shift clutch failed at 150k miles. The Best gasket graphite rear main seal installs just like the old asbestos rope seals, but is 1000x better and works very well. Genuine Ford Part. com and 8 quarts is better. 015? where do these people come up. 413", might require some careful "finish work" with a suitable punch. One of the things in the manual is that it specifies using a alignment tool to use on the rear main seal. Dropping the Transmission to Replace Rear Main Seal - posted in Drivetrain: Hey everyone, it's been a long time since I was last here on the forums. held on by screws or bolts. Next option. If you don't have a seal puller use the old cheapo method. To replace a rear seal, the rear axle should be placed securely on jackstands, and the tire removed. My Goal would be to change it in the car, without jacking up the motor, by pulling the steering linkage. , to pack the seal tightly into the groove, and tighten the main bearing caps (other than the rear) to snug the upper seal into the groove. 8 V6 is known for rear main seal leaks. Do you just remove the rear cap and simply feed the seal in? Does this work ok? Or should I leave "well enough" alone? I'm weighing the options of take the chance on an unknown seal that may weep a bitor should I just go ahead and replace the RMS?. Anyway, I recently undertook replacing my rear main seal on the F134. Now you need to follow these steps to start install them to your mobile phones. This article applies to Honda Civic/Del Sol (1992-2000). Re: Rear Main Seal Replacement After the main cap is on and tightened, now is the time to install the oil pump and drive rod. Rough estimate to replace the rear main seal (# of hours, costs involved, parts?) 2. The seal retainer itself can be the source of oil leaks so particular care must be taken to insure it's sealed to the block well also. All Buick's came from the factory with rope seals on both ends of the crank but installing them has become a lost art. Get the job done with the right part, at the right price. Install the two self-tapping screws in the holes. How do i remove the old seal, Ive replaced a few on the e7 engines, but was always replacing the flywheel housing also. Gently but firmly screw the three knurled seal mounting screws into the seal. Replacing the RMS on any car can be daunting. Rear Main Seal - How To install? Sign in to follow this. Rear main seal wear sleeve install? I have a couple of small nicks in the crank wear the rear main seal rides and I hate to admit it but I had previously filled the nicked spots with JB weld (for lack of something better to use) and then smoothed it off and installed the original sized seal that came in my gasket set. The most common cause of rear main seal failure is a faulty PCV valve. Lube and install the new seal into the block. There are a few how-tos on this topic. $300 - $600 depending on area/mechanic. Don't think so, but maybe your mouth can make different shapes to do it. And don't forget that oil pump as any leaks from it are easily blamed on the rear main seal along with rear block galley plugs and the camshaft rear plug. Install the new seal so about 1/4 inch is sticking out above the deck on one side. No your motor doesn't need removed or lifted in anyway shape or form to replace the pan gasket. Loosen all except the front main bearing cap. Oil runs down the back of the engine and ends up dripping off the bottom of the bell housing. com A rear main seal will lose engine oil while causing a bad oil leak. On a S-10 yes. I am basically pushing down on the outside rib with a flat screwdriver and pushing the seal in. Replace Rear Main Seal How To : Replace a Rear Dryer Drum Felt Seal If clothes have brown marks on them or heat escaping from rear of dryer drum, you will probably have to replace the rear dryer drum felt seal. if its rear main seal you have to pull the trans sadly _____. Rope type rear main seals conform to fit the allotted space so they worked well. I know the manual says you can remove the sump with the engine in the car, but can you do the rear main seal as well? I am a mechanic, but have never worked on one of these engines, what kind of seal does Ford use down there?. 2) What is the best way to fix it. FelPro makes a conventional seal with a repair sleeve. this forum and others like it make it much easier than the old way of asking one or two sources and hoping for the best. 3 diesel engine in Ford 3/4- and 1-ton trucks. They all list about putting the timing mark at the 5 o'clock position ect. On most modern engines, the seal’s failure is due to a condition inside the engine or a component connected to the back of the engine. How do you install the rear main seal on a cummins ism or rear crank seal. 015? where do these people come up. When looking at the rear main seal replacement cost it’s also important to consider other options. Page 1 of 2 1 2 Next >. Pull the bottom edge out and down and lay the panel aside. Remove the rear main bearing cap and discard the old lower seal. Installing a Rear Main Crankshaft seal on the 1987 DT466. Now for the really stupid question. How much to have a shop replace rear main seal? If this is your first visit, be sure to check out the FAQ by clicking the link above. Once the engine is up to operating temp, the leak seems to disappear. How Do I Replace Rear Main Seal On 1966 Mustang 289? I Have A 1966 Mustang That is leaking oil from the rear main seal. Some advice and instruction past that. Second, if it is the rear main seal, is there any other maintenance item(s) that should be done when you get into that area because it's going to cost over $1200 to fix. Rear main seal. Once the oil sealer is mixed with the engine oil, it 'goes to work' right away on all the Oil Seals and all the Oil Gaskets throughout the entire Engine,. You have to pull the trans to replace it. Re: Replace Rear Main Seal in reply to Ron(Ont), 09-29-2017 12:13:33 Sounds like the seal was put in backwards, did the same thing myself. The other option was a low-friction replacement seal. When you are there, overhaul the clutch cylinder, clean the reference sensors. 5L Turbo Diesel. Remove main cap and loosen the other main bolts, screw a small sheet metal screw into the rope seal being careful not to scratch or nick the crank, as you pull on the screw rotate the crank in that same direction. This is because that’s where the rear main seal resides, thus the transmission needs to come out in order to replace it. There are a few how-tos on this topic. No your motor doesn't need removed or lifted in anyway shape or form to replace the pan gasket. I replaced mine and still have a pretty substantial leak with oil running down the engine rear cover plate behind the oil pan and oil dripping out the clutch inspection plate cotter pin hole. It may be time to replace your rear main seal. Take rear main cap off. I havea few questions. To replace the upper main seal, you will probably have to use a screwdriver and small hammer to get the seal (ends marked with red arrows) to. These work their way loose and can show a leak that looks exactly like a rear main seal! Been there, done that! Take it out, clean it up and seal it back in with ultra grey sealer. I read the instructions in the gasket set on how to install the rope type rear main seal. ) I ended up using a PVC drain piece. Some people are getting quotes of up to $2,500 dollars on some vehicles, which is way to expensive for what I was trying to do…. This information is from the Ford Service Manual for a 2002 Ford Explorer, however it can be used for all 2002-2005 Ford Explorer, Mercury Mountaineer and Mercury Mariner vehicles. The rear main seal also has to be concentric with the crankshaft. Yes you can replace a 2 piece rear main seal on a SBC without pulling the crank, by just removing the pan and the rear cap. Lots more fun laying on your back on cold concrete. How bad is the rear main seal leak. The two bolts that attach the retainer to the block are recessed in holes in the retainer so that they are below the mating surface with the oil pan. Just wondering if anyone would have a rough idea on price i should be expecting to get both fixed?. Original instructions are included. I have 2012 GMC Terrain on 12/12/16 oil started leaking after extending driving in cold, car would not start. Do I have to drain the oil in order to do this? This is the only seal I want to replace when the engine is out so I don't really want to drain the oil. Rear Main Seal Replacement Cost The average cost for a Chevrolet Equinox rear main seal replacement is between $102 and $142. After getting the engine out I discovered the cheap plastic plate was leaking AND the rear main seal was leaking also. The main seals are the composite rings that encapsulate the ends of the crankshaft, that keep the crankcase oil from gushing out of the engine. Find FORD 5. You's be an (Insert demeaning comment here) to not replace the clutch while its apart, unless you like paying out the *** for labor. I am a bit confused on where to put the sealant. This is a part you will want to replace if you already have your transmission out even if it is not leaking. 1949 WD original 201 engine. So my question is can I pull the seal and install the new one without pulling the engine? It's in my highboy so is all that I need to do to get to it is pull the front drive shaft, middle drive shaft, trans and bell housing? And obviously the clutch and flywheel too. Email to friends Share on Facebook - opens in a new window or tab Share on Twitter - opens in a new window or tab Share on Pinterest - opens in a new window or tab. The easiest way to install hurricane straps is during the construction of the home. There are a few how-tos on this topic. I got under it today and saw it dripping directly from where motor and trans connect. Don't forget to use ,sparingly, some RTV sealant at the parting lines between the cap and block. Lining up the edges straight as shown in Photo #1 is difficult because you can't see what you are doing. number your main bearing caps and the crankshaft caps, pushrods and lifters. Shop 2007 Volkswagen Jetta 2. Front and rear views of the Kaase 1-piece rear main seal for Ford 429-460 engines. Keep it well compressed against the crank as you start the install, turning the crank will help and don't skin off any of the seal material on the block flange. you have to remove the flywheel or clutch, the rear plate. If the oil has already begun to leak out, though, then further repairs and cleaning may be required. The exhaust was removed from the 2006 4. fit the other rope seal in main cap and roll it in with a socket bar cut of the remaining seal flush to the main cap put some permatex sealer between the two mateing surfaces tension main cap bolt down and refit sump. But, how to replace a rear main seal without removing the transmission? You can find its answer by following a few steps process. definitely check the valve cover first. Tap the seal level into place with the seal tool until the seal is fully seated. While the seal itself takes less than a half hour to replace by a qualified technician, getting to it is the hard part. Due to the labor involved in replacing the rear main seal on the engine, it is best if you replace the front transmission seal at the same time if possible. ) only, use P/N 12345795, EngineOil Dye (U. Yes you can replace a 2 piece rear main seal on a SBC without pulling the crank, by just removing the pan and the rear cap. Rear main seal installation tool, # ZTSE43182 and ZTSE43183, was used on Navistar engines. Throw the plastic guide fucker the seal normally comes with in the trash and use some sense and use a feeler guage to walk around the oil wiper making sure its facing inwards. Mike, the 2. Numerous Internet forums confirm this habitual engine bleeding and the resulting frustration to the owner. Helping a friend with a 1955 Ford 800 tractor. Rear Main Seal Replacement On Mopar Magnum V8. Rear Main Engine (crankshaft) Seal Replacement – Volvo 240. Drivetrain. SOURCE: rear main seal is leaking on a Ford Mustang 2003 V-6 In order to replace the rear main seal u have to pull the transmission out to access it, u will need a special seal installer tool to install the new rear main "full circle seal", it u don't use the special ford tool the seal will leak again, also if there is a groove worn ion the crankshaft the crank must be repaired or replaced or. Remove all sludge and dirt from the oil pan sump. Labor costs are estimated between $187 and $238 while parts are priced at $10. A couple of turns will do, as you're only trying to gain a little clearance. The average cost for a Chevrolet Silverado 1500 rear main seal replacement is between $101 and $113. I have an '85 CJ7 w/258. Its job is to keep the oil that sloshes around in the crankcase and oil pan from escaping out the back of the engine. 1L engine and the rear main seal is leaking. Replace oil, air and fuel filters. Drain the engine oil and remove the oil pan. Maybe it is the old style of seal. Rear main seal. I am a bit confused on where to put the sealant. Since it's located in a difficult spot to reach i've heard the labor to get it done is very expencive($500-$800). Labor costs are estimated between $227 and $288 while parts are priced between $21 and $25. Any tips or tricks would be appreciated. Replaced the valve cover gasket and no more leak. I know the manual says you can remove the sump with the engine in the car, but can you do the rear main seal as well? I am a mechanic, but have never worked on one of these engines, what kind of seal does Ford use down there?. If you are installing a new rubber rear main where a rope seal is now the hardest part will be removing the old seal in the block. This genuine Ford rear main seal is manufactured from OEM quality rubber material to the original factory specifications to ensure a perfect fit and reliable leak-free operation. Original instructions are included. One option you may not know about is simply reconditioning the rear main seal in your vehicle. DO NOT USE RTV on the rear main seal. I am replacing the rear main seal on a 1957 Bird, 312 engine. But if a rear main seal leak appears when the engine has been recently rebuilt or is fresh, you’ll have to track down the cause. Install the seal onto tool J-34686 for 3. > Can not stop rear main seal leak. The above article was a compilation of comments and suggestions from a number of individuals with experience and expertise with the Chevrolet oil seal at the rear-main bearing of a T-car engine. its a little bit time consuming but its just my prefered method. 0 (T5 tranny) despite having tried a number of the tips from the various StangNet threads. 2 Tractor Trailer Salvage Yard Found Hiding A MEGA MUSCLE CAR STASH!!! Seafoam--can't believe what it did to my engine!!. A place where all are treated equal and ideas are shared freely. 2 ltr Engines - Since 1976, Terry's Jaguar has been in the business of supplying a wide range of parts for Jaguars - everything from XK120, XK140, XK150 and all XKE / E-Type Parts models right through to the latest Jaguars on the road. The vehicle in this video has a leak in the front main seal of the automatic transmission. Exploded view of the rear main seal installation - 3. Rear main seal install. Car details. oil pan gasket. SOURCE: rear main seal is leaking on a Ford Mustang 2003 V-6 In order to replace the rear main seal u have to pull the transmission out to access it, u will need a special seal installer tool to install the new rear main "full circle seal", it u don't use the special ford tool the seal will leak again, also if there is a groove worn ion the crankshaft the crank must be repaired or replaced or. Just be sure that the oil coming from the bell housing is not residual oil from a previously leaking cam O ring or valve cover gasket. and replace the seal after removing the oil pan? What about if the crankshaft is scored? Is. Also replace the pilot bearing - the end of the torque tube fits into it. 3 diesel engine in Ford 3/4- and 1-ton trucks. Replace valve cover gaskets. Once the tire is off the vehicle, remove the retaining pin from the emergency brake lever mechanism at the backing plate and move the cable out of the way. Remove the oil pan front and rear neoprene oil seals. I bought the rear main housing gasket and a victor reinz rear main seal with wear ring. Do you just remove the rear cap and simply feed the seal in? Does this work ok? Or should I leave "well enough" alone? I'm weighing the options of take the chance on an unknown seal that may weep a bitor should I just go ahead and replace the RMS?. Step 5: Next, seat the new seal level into the mount. If i drop the tranny, clutch, and flywheel, can i change the rear main seal without pulling the motor?. Asked in Ford Ranger , Ford Ranger XLT What is the cost to replace rear main seal on 2003 ford ranger with automatic. Tap the seal level into place with the seal tool until the seal is fully seated. About a year ago someone asked you a question about putting a rear main in a 2000 explorer, i copied the queston, ' Trying to put rear main seal in 2000 Ford Explorer. I know my rear main seal needs to be replaced and if I can get it done for $500 thats a good deal. A repair sleeve is a very thin sleeve made just for your engine and is pressed over end of crank to cover the worn groove. The time charged for this should be around 4 hours. Just replaced mine myself (with a buddy) because I had a cracked transmission housing on my 00 xterra (figured I would replace clutch and rear main seal while tranny was out). 0l seal installation; I assume that the 4. Replace Seal. How to Install Hurricane Straps to a Roof. If either are a problem it will result in crankcase blow-by pressure to not be vented and therefore build up and force oil out past weak or old seals. The rear main seal is what seals the crankshaft to the engine block and keeps engine oil from leaking out around the crank. Ok, I just got the teflon rear main seal from Advance and it came with a plastic sleeve that it calls an installation tool. Now I think it's the rear main seal, the bane of all car and truck owners. For the rear main seal the part number is National - Crankshaft Repair Sleeve Part # 99372 They also come with the installation tool that is used to drive the sleeve in place. However the first question is this: are you sure it's the rear main seal? There's also a common E36 oil leak area at the back of the head. Other shops thought the small oil leak was coming from the oil pan gasket, but these guys did a more specific check on such things. com : Ford Forums. Labor costs are estimated between $89 and $113 while parts are priced between $13 and $29. We're sure this How to Replace a Rear Main Seal article will help you get your car back on track!. Install the seal into the main cap and lube with engine oil. Don't sweat it. instructions. Before a. Be sure you have it facing the correct direction as per the mfg. I understand that it is easier to install if I loosen the rear caps. If you replace the plate with the sump in situ you have to push the plate hard down onto the sump, otherwise the plate will sit up on the sump gasket, meaning the gasket is not properly compressed and the rear main seal is not concentric with the crankshaft. Take special care to seal the top side of the top piece of trim. Install upper part of the rear seal and then clock it so that the seam is not the same as the cap/block, install the lower part of the seal onto the crank, install main cap and tq to spec. hey guys so Im having issues with a rear main seal leak on my 2008 2. They all list about putting the timing mark at the 5 o'clock position ect. Easy to install even with the engine in the car. One of the things in the manual is that it specifies using a alignment tool to use on the rear main seal. Engineered via the most advanced sealing technologies, Fel-Pro’s OE replacement rear main seals offer the right fit for a long-term, leak-free seal. I mangled a two sets of bearings trying to replace main. Meatys guide to replacing rear main seal Service & Maintenance For installation, I used the old seal and placed above the new one and use a hammer to tap it in. The reasoning behind this is that when inserted traditionally, there's a small gap between the. The rear main seal which is a wick or rope seal does weep a bit and I am thinking now would be a good time to change it. A rear main seal will lose engine oil while causing a bad oil leak. 6 Is their a special way that I am supposed to take out the old seal and install the new?. For the rear main seal the part number is National - Crankshaft Repair Sleeve Part # 99372 They also come with the installation tool that is used to drive the sleeve in place. Install New Crankshaft Rear Seal; Install Flywheel. Replacement Tractor Part 832355 REAR MAIN SEAL KIT/INSTALLER for CASE-IH MX100 MX110 MX120 MX135 MX150 and more. it has been totaled once and I only plan on keeping it until I finish college in two years. How hard is to replace a rear main seal on a 1995 GMC Jimmy 4. Oil runs down the back of the engine and ends up dripping off the bottom of the bell housing. Well as some of you may know i got a leaking rear main seal. I have replaced two piece rear main seals but not the one piece. After getting the engine out I discovered the cheap plastic plate was leaking AND the rear main seal was leaking also. A rear main seal leak is likely the most expensive oil leak any 3. 0 with the engine in the jeep?. Car details. Don't forget to use ,sparingly, some RTV sealant at the parting lines between the cap and block. Hi people recently i started replacing the seal main seal and also the rear engine cover gasket on my vx ss. I tried to replace the seal in the car. When the problem arises, much of the engine disassembles, leading to higher labor cost. Install the rear end plate. Dura Seal Head Gasket Repair is a Professional-Grade Head Gasket Sealers, Rated #1 by mechanics. I don't believe in offsetting the seal ends though. Many other. However the rear main seal is kinda scary to me. Just follow the instructions in the seal box. Somewhere I read that someone thought it was possible to remove the main caps and lift the crank to get enough room to remove the old seal and replace it. I've purchased a 1-piece rubber oil pan gasket and will install that tomorrow and return the RMS on Monday. He'd just rebuilt his engine and had a significant rear main seal leak. Do not touch the sealing lip of the rear main seal once the protective sleeve is removed. Cannot be anything else. Installation outside of removing the transmission and corresponding parts is pretty straightforward. The rear main oil seal in your vehicle is a 1 piece seal & the transmission must be removed to install it. The shoe horn was tough plastic disposable type, somewhat helpful but not essential to installing the seal. I havea few questions. cap torqued. Rear Main Seal Replacement Cost The average cost for a Chevrolet Equinox rear main seal replacement is between $102 and $142. I've used them on all of my pontiac builds for the last 5 years and have had no failures or issues. Replacing a rear main seal can be so expensive the cost to replace it may be more than you have to spend, or even more than your vehicle is worth. I am considering a 1974 model, but the owner thinks it may be leaking at the rear main seal. You can replace the seal by just removing the rear main cap. Rear Main Seal Replacement Cost The average cost for a rear main seal replacement is between $248 and $313. 0L pushrod engine. Labor costs are estimated between $44 and $56 while parts are priced at $26. But i was watching TRUCKS last weekend and they had this product on there that you pour into the engine with every oil change and it's supposed to stop the rear main seal. Fel-Pro seal is good. I went to HF and bought some heavy duty jacks specifically for this job because I wanted the height and stability. 1500's gotta breath or it will [censored] oil all over the place in protest. Replace oil, air and fuel filters. Exploded view of the rear main seal installation - 3.