Replacing Rear Main Seal

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Mar 18, 2007 | 04:10 AM

nighthawk285

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From: La Grande, OR

Replacing Rear Main Seal

So I crawled under the truck today to see what I could see, and I found that my rear main seal is broken and letting oil through....Yes I am sure its the rear main, only coming from the center of the engine, where the rear main is. Luckily I guess I caught it early enough to tell where its coming from. Anyways, it's a 1994 351W, and I'm not entirely sure.......Do I have to pull the pan to replace this, or can I just drop the tranny and work on it from that side?

Thanks

Mar 18, 2007 | 04:24 AM

Skandocious

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Joined: Oct 2006

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From: Davis & Newcastle, CA

I have heard that you can either pull the engine or drop the tranny. My rear main leaks too, although VERY slowly. I think I'm going to wait til my auto tranny needs a rebuild to replace it. Heard about a guy that will convert my E4OD to a 5 speed (yes, the entire kit and kabootle, will be drivable right off his lot) for about the same price as a rebuild, might go that route

Good luck with the rear main, let me know how it goes.

-Chris

Mar 18, 2007 | 07:36 AM

subford

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Joined: Aug 2005

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From: Easton,Ks

Quote:

Originally Posted by nighthawk285

Yes I am sure its the rear main, only coming from the center of the engine, where the rear main is.

If it is only coming from the center of the engine I would say it is the pan gasket not the seal.

If the seal is leaking the oil will come down the inside of the Converter/Flywheel Housing.

Image of leaks:
http://i54.photobucket.com/albums/g9...uidLeaksC6.gif