Lt1 rear main seal replacement. Rear Main Seal Housing, Chevy, Small Block, LT1, Each .

Lt1 rear main seal replacement Feb 21, 2012 · C3 General - 1972 LT1 Rear Main seal removal - I am convinced that the rear main seal is the cause of the leak on my newly rebuild engine. Gen V Rear Engine Cover with Main Seal. Rear Main Seal Replacement. 5 Oct 12, 2007 · Now take the two bolts out of the rear main cap and remove the cap. They say to install the rear main housing with a new gasket and no sealant correct? Also then they say to apply a thin coat of engine oil to the new rubber seal and then install it into Dec 24, 2008 · Coat the seal with a light coat of RTV and tap it back. Dropping the transmission is super easy and quick on a rear drive car whereby a front driver you need to pull the axles, engine mounts, sometimes pull out the whole engine, and a whole bunch of stuff to get to the rear main seal. Taking the old seal out of the cap side is a snap, it is the engine side that gives people head-aches. Use a gasket scraper and carburetor cleaner remove the old gasket material, oil and grime from the seal housing. Also, anyone have the torque specs for: 1. I believe this is likely to be the equivalent of the original (older) GM 12554312 Teflon seal, used in 1997 LT1's and all LT4's, but shown as a suitable replacement. I can't tell if mine is 1 piece or 2 piece. Add to cart. to/2HGYCSALS barbell - https://a Remote Clutch SPEED Bleeder Line for 2005-2013 Corvette C6 & Z06 & ZR1, 2014+ Corvette C7 & Z06 Rear Cover Gasket and Rear Main Crank Seal 4. The crank looked good with no grooves or wear marks, so we put a very light film of Ultra Copper gasket sealant in the seal bore, oiled up the new seal and tapped it home. Affirm 0% APR for up to 12 months is available now! Oct 28, 2015 · -rear main seal (buy the rear cover and it comes with the seal) ~$70-oil galley plug (often cause of the leak and is behind the above mentioned cover) ~$10-clutch kit with flywheel(if manual, a must) ~$400 and up depending on power needs-slave cylinder (if manual, a must) ~$150 May 2, 2023 · Gen V Rear Engine Cover with Main Seal Fits 2014-2023 LT-Based Truck/SUV Engines L83 L86 L82 L84 L87 5. 5 hours, and the seal is about $35 so depending on the shops labor rate figure around $400. Rear of LT1 Intake Manifold A The oil pan and front cover don’t have a gasket they use rtv, but if you wanted to swap seals while you’re there you could replace the front and rear main seals and water pump and exhaust gaskets Follow along as we replace the one piece rear main seal, real main seal retainer gasket, and oil pan gasket on our 1999 Chevy Suburban, with a Chevy 350 smal we are a family farm in Ontario showing you what we do to produce eggs, we just got 4 inches of rain some of are crops are drowning, there is nothing we can It is a rather thin seal with not much of a lip on it compared to the replacement. 0 Transmission- NV3550 Manual After driving my jeep with a clapped transmission for the past year, I've decided it's time to replace it. 060"), Eagle Internally Balanced Forged Crank, Eagle 6 May 15, 2013 · But the 1996 factory manual is available for download. I think you have to remove everything from the back of the crank and then there are some bolts that hold the rear seal in and you will have to remove the pan and I think the rear bearing cap but I'm not possitive on the cap. 2L Nov 24, 2010 · The double lip seal will ride on parts of the journal that are still fresh with no grooves, improving your seal. I understand that later 1986 have the aluminium heads. It's a Felpro 2 piece seal. 5 L 4 cyl, AWD, S/R Cajun Red Tintcoat/Black Now at 183K & following the above schedule, I have yet to replace the seal (added rear main seal Made from Viton® synthetic rubber this one piece rear main seal is a direct fit replacement designed specifically for your engine block. Seal replacement is shown in Volume 1/Part 2 - page 6A3A-28. Related Products; Chevrolet Performance Gen V L83 L86 LT1 LT4 Rear Main Seal 12665076 Gen V L83 L86 LT1 LT4 Sep 2, 2007 · Basic, easy to follow, do it once rear main seal change. Genuine GM # 12705663. 0 6. See part #12705665 for LT1/LT4 car engines. Applications Include (Gasoline 5. LSX Block Rear Cover O-Ring Seal 19166181 CHEVROLET PERFORMANCE GEN V LT REAR MAIN SEAL - 12665076. If the item is a Special Order Part, then most special order parts will generally ship from our warehouse within 3-5 business days but may take up to 7-10 business days based upon their availability from General Motors before shipping from our facility in North Carolina. install new seal in cap replace Felpro Rear Main Seal kit -- a double offset lip seal Part no. Once you have the pan down, remove the oil pump and pickup. 7L/350 Rear Main Seal Housings and get Free Oct 19, 2021 · I’m about to install a new clutch and replace the Rear Main Seal cover and gasket. can someone share their secret how it is done and the proper orientation of the seal when installed. 7 pulley Hardcore Intake May 26, 2019 · 2000 Wrangler Sport 4. Only 10 left . he says the engine is not blueprinted and balanced. Half the seal comes out with the cap, the other has to be "rolled" out from above the crank. T Nov 1, 2010 · 94 Z28: 383 12. 0 LX, 83-95 GT and 93-95 SVT Cobra models. But a bunch of stuff must be removed. Jun 10, 2008 · I'd like to replace the rear main seal while I have the tranny down. So I just live with my leak. Don't force it the key has to be correctly lined up. Be the First to Review. Jul 11, 2011 · Does anyone know if all 1986 L98 motors have a 1 piece rear main seal? I understand that 1985 L98 engines have the 2 piece rear main seal, and that some early 1986 C4's used 1985 components. 7L/350 Rear Main Seals and get Free Shipping on Orders Over $109 at Summit Racing! $25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT Vehicle/Engine Search Vehicle/Engine Search Make/Model Search May 25, 2021 · OEM Style – Valley Cover Gasket Gen V LT1 (12623104) Rated 5. Drivetrain If its a major leak from the rear main seal, youll see the oil pouring out from between the engine and transmission bellhousing. OEM Style – LS Rear Main Seal (89060436) Rated 5. The rear main seal may be a bit tricky to get installed in there. There are two seals on that cover. Mopar Replacement Rear Main Seal Housings 04893235AB Find Rear Main Seal Housings and get Free Shipping May 7, 2007 · It's not needed around the circumfrance of the rear main or the front timing cover if you use the one piece oil pan gasket. If you have trouble, you can use a seal driver kit, or a flat piece of wood that you can hit with a dead-blow hammer to drive it in. The rest is a completely dry installation. The manual says to pry it out and press a Jan 24, 2012 · 2004 IBM A4 mods: 5000K 35w HIDs, 5% tint on rear windows, K&N CAI, SCT tuner, JVC KW XR610 head unit, Lovells zero drop rear springs, Lovells rear diff insert, hawk pads front and rear with russel speed bleeders all around. This original equipment seal will provide the same performance, durability, and service life you expect from General Motors. 00 out of 5 $ 14. Easy enough to do. The heads will not interchange, the distributor location is different, the cooling passages are different, timing cover etc etc. Sep 1, 2008 · I have a 94 lt1 and i'm replacing all bottom end gaskets (rear main seal, front main seal, oil pan, and timing chain cover). But in regard to the seal install to the cover, it's a machined fitment for the seal itself, lubricating this fitment could reduce the hold on the seal. com/eastwoodtorquewrenchRear cover gasket & seal - https://amzn. Application. 6 nsa Pro mags, patriot golds, 42lb green tops, ARP bolts all around, canton 6qt pan, pacesetter coated long tubes backed by a magnaflow Eastwood torque wrenches - https://www. Prior to having my rear main seal replaced I thought it was (was hoping) it was the rear intake, so I took the intake off and resealed it, from what I can remember, I dont remember it leaking there period when I Feb 19, 2025 · Without scoring the seal housing, gently pry the seal and retainer until its removed. A Genuine GM rear main seal is the best choice to maintain OEM reliability when working on your 2014-newer LT based engine. With all this stuff out I think it makes sence to replace the rear main oil seal (72k miles on the car). Fig. rear Main Seal cover 2. 8 5. what order should i do these in Jan 27, 2009 · 1996 Firebird T/A WS6 My Mods: Pacesetter longtube headers, 3 Inch exhaust with an ORY and a Magnaflow catback exhaust minus the cat, CC503 cam , 918 valve springs, 32lb injectors, mail order power tune by solomon, MSD6AL box, C5 Zo6 rims with BFG G-force KDW's and Moser Ford 9 inch with 4. Video Link: Are you sure it's not the intake or maybe the oil pressure switch? Both are lots easier than a rear main. Feb 20, 2011 · GTO Tech. 5", so when you put the rear main on, . Apr 12, 2010 · As 95 said if it's the rear seal then you will need to drop your transmission to change it. (Image/Jim Smart) The one-piece rear main seal is part of a cool bolt-on rear main cover. This Ford Racing Rear Main Seal Gasket is designed for use on the 1983 to 1995 Mustangs equipped with a 5. Looking at the instructions, appears to replace ONLY the seal, you remove the flywheel and pry the seal out of the housing. first Aug 28, 2006 · C4 Tech/Performance - Rear main seal (93 LT1) replace while doing clutch? - Im gathering the parts to do my clutch change. _____ front cover seal NONE BTR TIMING COVER DAMPER SEAL - GEN 5 LT - BTR34614 - Only 5 in stock! CHEVROLET PERFORMANCE TIMING COVER DAMPER SEAL - GEN V LT - REPLACES 12693255 - 12634614 Includes bolts and rear main seal. But through the years of working on this car I've found that nothing is ever as simple as it appears (like having to pull the cat to change out a leaking oil level sensor). 126: View Of Crankshaft Rear Oil Seal Jun 7, 2009 · Rear main is a one piece on these engines so replaceing it is not that easy. The china wall is located at the very back of the intake where the intake and block meet. $34. 00 out of 5 Okay guys new member here so dont roast me too hard lol The other night I went for a pretty hard ride in my car, maybe like 4-5 hard hits. Id suggest spraying the whole area down with a good spray carburetor, brake or throttle body cleaner to totally degrease the area, put the car on a lift and let it idle while you watch from under the car with a couple strong bright lights for the leaks source. From Amazon:Rear Main Seal Sethttps://amzn. Jan 21, 2010 · Here's some good pictures of the rear main housing and seal replacement. 2 LS1 LS2 LQ4 LQ9 LS3 L92 L94 L76 L77 LY6 L96 89060436 12633578 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Stock Replacement Late Model Muscle Rear Main Seal Housing, Chevy, Small Block, LT1, Each Find CHEVROLET 5. please like this video :)Facebook: http://www. Add to Cart. If the old seal is a rope seal then you will need to screw in a very thin and long eye bolt for wood. There is a cover that bolts to the back of the block, and hides behind the bellhousing. 7K views 6 May 4, 2014 · it sounds like the rear oil pan gasket , that is leaking to me. Oct 10, 2012 · 8. Ron 96 Impala SS, T56, CenterForce DF 4. They say to install the rear main housing with a new gasket and no sealant correct? Also then they say to apply a thin coat of engine oil to the new rubber seal and then install it into Aug 31, 2010 · Steve, I have seen 2 different 1pc type rear main seals being used over the years on the LT1 and the later brown colored teflon based seal appears to be the latest and greatest over the earlier black colored seals I have come across. When I asked the "motor heads" there was no unamomous agreement as to a particular type. Don't worry about aligning the opti it will only go on one way but be very careful putting it back on. The lower half of the seal is right there. Jun 24, 2010 · So I recently had my rear main seal replace, mechanic informed me it is still leaking from somewhere in the back after he replaced. I torqued the oil pump to 66ft l May 22, 2009 · The LT1 has a single piece rear main oil seal designed to be installed without the pan being dropped. I have an early build 1986 C4 with cast Iron heads. Remove the rear main cap. facebook. 3 5. They only recommend sealant in the corners of these locations on the block side only. When you drop the jack down, you will more than likely have to place the transmission on the ground to get it out from under the car, unless you are using truck/RV jack stands. How to change a 1 piece main seal on a small block ChevySong: MBB - Feel Good (Vlog No Copyright Music)Music provided by Vlog No Copyright Music. 5:1 forged 4340 crank, forged H beam rods, forged -5cc Mahle pistons, H series bearings all around, B&M flex plate, keyed hub, LE2 heads, custom LE grind, LE ported intake, BBK 58mm, LS7 lifters, comp hi-tech push rods, 1. Rear Main Seal Housing, Chevy, Small Block, LT1, Each. Sep 6, 2014 · Of course, as GuppyMech pointed out, Victor Reinz also sells a JV1634, advertised as a Teflon seal that fits 1993 to 1996 LT1's. Make sure you have them aligned properly to seal in the oil. Jun 19, 2014 · I wouldn't put it back together without new ones. 56 gears, 383 Stroker, AI Heads Jun 26, 2010 · definetly replace rear main seal while engine is out i would also pull oilpan and put a white spring in the oilpump and put a new pan gasket on. I would check to see if it's your intake leaking at the china wall, it is a common area for a gasket leak on the LT1's. I wonder, what kind of work are you doing in your Vette? No-one just takes off 90% of the drivetrain for the rear seal. 5" rear LT1 and C5 brake conversion under way 24" rims the two piece rear main seal. They replaced with a LS3 seal and I had them install a larger 4. 2L Engines) 2016+ Cadillac CTS-V (6. There was also oil collected at the bottom notch, so it did appear to be the culprit. I just re-installed from the rear seal to the axle. Find LSXceleration Gen V L83 L84 L86 L87 LT1 LT4 Rear Main Seal 14-65076 at LSXceleration with Free shipping on qualifying orders! Toggle menu. anything you can do with the engine out is going to be alot easier. 03. Feb 27, 2011 · 383 LT1 - LE Trickflows - LE Ported Intake - Jones Cam Designs Solid Roller Rear main seals are easy though. The guy that put the engine in is refusing to change it again because he says the car has a cam and it keeps making the seal leak. Mar 28, 2023 · A rear main seal on a rear drive car should be cheaper to do than a front driver. I took off the flywheel (aluminum flywheel with steel friction plate) and noted that there are a Sep 30, 2020 · I had a fair amount of oil leakage from the rear main seal area on a recent long WOT run of a stock LT1 engine with LT4 blower. Its been changed 2 times. Its Rear Main Seal set (BS 40640) contains a Teflon-impregnated steel shim for the rear engine cover and a Teflon-lip (In Stock) Rear Main Crank Seal (All LS & LT Engines) Vehicle Applications: 2016+ Camaro (6. These seals are the perfect choice for servicing your GM vehicle. Follow FSM torque specs. The shop manual calls for a special tool to install the seal. Mar 22, 2004 · C4 Tech/Performance - Rear main oil seal 94 LT1 questions - I am replaceing the clutch and have the flywheel off and I see the rear main seal is damp, not really leaking. Most of the factory and aftermarket seal/gasket kits I see currently for LT1 have this brown colored main seal in the kit. The labor time is around 3. 2L. Sep 4, 2006 · 1984 H/O Cutlass lightning rods 8. howtomotorcyclerepair. The seal can be pulled-out with a screw-in seal puller (be careful to not insert it too far -- look at the thickness of the new one first). 0 PSI 2. Got the transmission in and ready to move onto the accessories! Mar 8, 2014 · LT1 | LT4 | L99 Engine Tech. Gently pry the crankshaft rear oil seal (1) from the rear cover. Offset them a little bit. My method this last time was to put the large side forward as per directions on the package. I am informed that the seal can be removed without taking the engine out. Apr 30, 2008 · Because the seal is in front of the flywheel AND it has the flange on the rear of the crankshaft just behind it. but I think you can replace the front main seal without removing the engine. Match the new rear main seal to the old seal, they should match identically in size. Sep 9, 2009 · Run the car for approx 20-30 mins, get it back to the house and with a good light source, Check the rear of the intake, oil pressure sender and rear main seals for any leaks. Jan 20, 2010 · I got a new lt1 engine put in my t/a and the rear main keeps leaking. That is the key to a no leak rear main seal. Jun 13, 2021 · C7 Forced Induction/Nitrous - Rear main seal replacement - I had a shop install a P1-X procharger last week on my 14 Z51 M7 and on the dyno after install the front main seal blew out. They finished the tuning on their Feb 8, 2004 · C4 Tech/Performance - LT-1 Rear Main Oil Seal Replacement - With the flywheel off (which I don't have yet but will soon), can the old rear main seal be pulled and a new one installed without dropping the oil pan and pulling the seal housing? The Helms manual leads one to believe it can, but the Haynes manual says you Nov 1, 2008 · 2. Do not reuse the crankshaft rear oil seal. Parked the car in my buddies driveway and went inside for like 10 mins, when pulled off he texted me a picture of his driveway with oil on it that leaked from my car. They finished the tuning on their Mar 7, 2023 · Step by step instruction on how to replace a rear main seal on a C4 Corvette. Should I replace rear and possibly front seals while it is out because of the age and possibllity of them being dried out? Thamks. Rear main seal is a little harder. SPEC, Centerforce, McLeod, and a couple others make steel and aluminum versions of these flywheels, but they are all $400+ dollars. Jan 20, 2012 · Everything is different with the Vortec motor. Question . New Rear Main Seal Installation. The only similar items are the rotating assembly and rear main seal. MrDiag : Hi, My name isXXXXX cost to replace the rear main seal should be around $400 on that car. . Sep 2, 2020 · Once this is accomplished, the oil pump cavity is filled with engine assembly lube for a good wet start-up. 0L (302) V8 engine, including the 83-93 5. I'll get some other estimates before I pull the trigger but I imagine they'll be close to the same. 2L 6. Includes rear cover, rear main seal, bolts, and oil galley seal. But I assume you're meaning the seal against the crank end that turns, which I agree, I like to do a wet seal, just a finger dab of oil. Jump to Latest 1. Now the goal is to keep the transmission as level as possible when you are pulling it out, to avoid fluid spillage. Aug 12, 2010 · Don't know what you mean by shoe horn - but I have always removed the rear main cap, pushed the upper seal in while rolling the crank a bit (helper required) and then put the lower seal in the cap and reassembled - seals are flush with the cap top when I put it on, no clocking - haven't ever had one leak and I didn't use sealer on the ends of the seals either, I'd be leary about doing that as Tools you'll need is 16mm for crank bolts 17mm for crank slide A sleeve to press seal in Seal puller tool or screwdriver Jul 16, 2012 · I just tried to get an estimate from a shop for changing the rear main seal in my 96 TA LT1 (6speed) and this is the response I got. 2L Engines) 2014+ Corvette (6. L83 L86 L82 L84 L87 5. 99. 5. 50 pulley to lower boost (~7psi). Fits 2014-2023 LT-Based Truck/SUV Engines. Mar 7, 2014 · The LT1 trans will bolt up but you need a "hybrid" flywheel that bolts to a 2pc rear main seal crank which has a smaller bolt pattern. "That requires a in this thread in this sub-forum in the entire site Jul 7, 2010 · Also, before you pull the trans to replace the rear main seal, make certain that your leak is not at the rear of the intake manifold (that is a common place for these motors to leak). I've done RMS's on newer one piece designs (LT1's). May 29, 2009 · C4 Tech/Performance - '95 C4 rear main seal replacement - help please - Hey guys, I have a 1995 C4 corvette ~180,000 miles on it with a 2007 short block engine (~30K miles on it) new radiator/overflow tanks, new AC, intake, exhaust, what have you; I seem to have replaced just about all of it. On the other hand, if you are replacing the rear oil seal housing and gasket, the oil pan must be removed. Do I need to drain the oil before changing the cover and seal? I only have 100 miles on the oil in the pan and would rather not drain it if not needed. Qty. to/41O83E9APlusLift 10,000LB Two Post Jun 13, 2021 · C7 Forced Induction/Nitrous - Rear main seal replacement - I had a shop install a P1-X procharger last week on my 14 Z51 M7 and on the dyno after install the front main seal blew out. I'm just trying to add as much small clips as I can for future reference if I need it. View All Close. Transmission is out but now I also want to replace my rear main seal, but i have only seen videos of people replacing the rear main Oct 19, 2017 · 2018 Equinox LT1 1. 3L 6. Nov 27, 2010 · if it is 2 piece (motor may not be l98 orginal),, remove distributor cap, motor mount 7/16 bolts, lift motor with picker. Don't scratch the bearing. From the pictures I've seen it looks like a piece of cake, pop the old one out, pop a new one in. 7 6. Aug 31, 2023 · Unless the rear cover is also leaking, I'd just replace the seal. Now is the best time to replace the rear main seal, as well as the rear rubber inner seal as pictured below (both red arrows). BS11829-1 (fits 1959-1985) And a Oil pan gasket kit --- your choice -- one piece or a 4 piece cork whatever -- your preference. Install it dry. Nothing other than maybe a little oil Nov 24, 2019 · Hey everyone, installing the rear main seal on my 96 LT1 and I'm confused on what the repair manual is saying. first Nov 24, 2019 · Hey everyone, installing the rear main seal on my 96 LT1 and I'm confused on what the repair manual is saying. If you do replace the rear cover, give some thought to replacing the oil passage dumbbell with a better designed one. I applied Mar 8, 2012 · C4 Tech/Performance - LT1 Front Crank Seal Replacement - Hi there, In January I was chasing down an oil leak at the front of the engine, and I ended up replacing the following: Waterpump seal Opti seal Front crank seal Optispark Oil pan gasket Oil filter adapter gasket I know a lot of times the most common leak is at Aug 18, 2004 · I think I may have an oil leak at my rear main seal. If the LT1 is leaking oil from the back of the motor, check the intake manifold bolts first! On the Chevy Corvette, Camaro, Cadillac Fleetwood, Buick Roadmas Mar 15, 2022 · Used some back woods techniques to grab out the rear main seal and pilot bearing. This is a quick 2 minute tech tip to show how I make sure the rear main seal housing is perfectly centered. Apr 5, 2018 · Fel-Pro produces high-quality gaskets that meet or exceed OEM specifications. Here's a couple of pics for the rear of the intake manifold and the rear main seal area for reference. Replaced the rear main seal #BS40656. Does this sound Jan 4, 2011 · Is it the rear main seal or the rear cover seal? Rear cover seal is pretty easy to replace. 1996 Vette, 388 CID LT1 (3. Chevrolet Performance Gen V L83 L86 LT1 LT4 Rear Cover 12705663 Includes bolts and rear main seal. com/@ImpalamansGarageIn this video: Rear main seal install, front crank seal install, oil pump rebuild, priming the Oil SystemIn this video s. Installation Procedure IMPORTANT: Do not lubricate the oil seal inside diameter (ID) of the crankshaft surface. In stock. In the mean time, I've gotten no further oil leaks although admittedly I've only done short WOT bursts (300 miles). I fairly positive they are 153 tooth, 11 inch units. 6L models only): Same. I set the upper part of the in place leaving 1/4" out on 1 side. Not even sure if your motor has a rear cover, but on mine the rear seal is two part. Feb 11, 2012 · 05 A4 Cam 224/228/115 Kook LT's SF H Pipe High Flow Cats 6" Magnaflows 112 Maggie 5. front timing seal, and i would also put new intake gaskets on, also new valve cover gaskets. put new plugwires on while engine is out. In stock items will ship within 24-48 hours of the order approval. Fits Truck/SUV Engines Only. Rating: 0 % of 100. Are you absolutely positive it's the rear main seal leaking? Because a leaking intake manifold, oil pressure sender, or valve cover(s) can also allow oil to collect down where the rear main seal is. You would pretty much have to pull the LT1 LT4 L83 L86 L84 L87 L8T L82 L8B. Never lube the seal lip, which can cause seal failure. Push one in too far, about . 75" X 4. Sep 7, 2017 · I'm having problems with the rear main seal leaking. 30 gears and Truetrac carrier. Finally, don't set the halves perfectly aligned with the block and rear main. The estimate for replacing the seal, oil pan gasket and transmission front seal was a wallet busting $1381. Again, just did this myself last week. As mentioned, the 84/85s have a two piece seal meaning you need to remove the oil pan and one main bearing cap. I have changed it twice in the last week. Apr 8, 2014 · C4 Tech/Performance - Should I replace rear main seal on replacement engine (LT1) - Will be replacing my engine in my '93 with another stock engine that has 32-33,000 miles. Jul 30, 2022 · https://youtube. I cleaned it up and planned for a replacement of the seal - awaiting parts. Are there any special tools needed to replace the older two piece design? Any tips/tricks for doing this on a 454? Any recommended sources for this seal? I would just go with felpro. Last time I replaced the clutch (in 2002, a mere 25k ago) I replaced the rear main seal as well. If the oil is going around the bellhousing or coming from the sides of the engine block, rather then between the engine and trans, would look at oil pressure sensor and valve covers first. You just gotta drop the tranny, and take out the Dec 22, 2014 · Apparently it is the rear main seal or possibly the rear of the oil pan gasket. IAW your profile you have a ZF. 2L Genuine GM # 12705663 Includes rear cover, rear main seal, bolts, and oil galley seal. com/GhostlyrichThis is a very thorough walk through do it yourself tutorial i did on assembling a lt1 Find CHEVROLET 5. Welcome to LSXceleration! These rear main seals are a direct fit replacement for the factory original parts. Bellhousing for transmission Thanks! Feb 11, 2022 · Anyways the techs really didn't have a clear answer as to why this would happen, from what i have seen on this forum it is known that these seals are weak and the only post I have found with this issue are cars who are boosted and replace the seals with LS3 ones, so I'm kind of in a state of well what the hell then because I want to track this Sep 29, 2003 · C4 Tech/Performance - Special Tool - LT1 rear main install - I'm getting ready to do a rear main seal on my 94 LT1 6 speed. I would be doing an in-vehicle replacement. remove oil pan, remove rear main cap, use pick to remove upper seal,, (REmmeber which way in come out),,after cleaning, reinstall new neoprene seal with a dap of black gasket maker on the ends (dont for get to lube it, dont want dry start). hied azomg gbmm myc cxgfl vwfk trdsv tuzc ytxs gwckhxe kepakdt bsnyqflp wurldjkd hgsvxnhl trj