Does engine have to be pulled to replace rear main seal?
Cargo Master
Joined: Apr 2001
Posts: 2,364
Likes: 3
From: Eustis FL
Either engine or trans need to be moved back to access the rear main seal.
Oil pan must go, and bearing caps are loosened enough to allow installation of new seal. Of course, one must follow re-torque specs. You should find the procedure in a Chilton or Haynes manual. I think most transmission shops can accomodate you, but it is always good to ask first. If they won't do it, maybe go somewhere else for trans work that will.
Oil pan must go, and bearing caps are loosened enough to allow installation of new seal. Of course, one must follow re-torque specs. You should find the procedure in a Chilton or Haynes manual. I think most transmission shops can accomodate you, but it is always good to ask first. If they won't do it, maybe go somewhere else for trans work that will.
Senior User
Joined: Jan 2005
Posts: 249
Likes: 0
From: Concordville PA
Originally Posted by trinogt
How did he get around the flexplate/ flywheel problem? The torque converter or clutch would also be in the way...
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Posting Guru
Joined: Aug 2002
Posts: 1,729
Likes: 2
I believe 351m/400 are the same seal. All you need to do is drop the pan and #5 bearing. Use a soft wire or pipe cleaner to push the old seal out of the top. I've changed rear main and main bearings this way on my 400 without a problem.
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Cargo Master
Joined: Apr 2001
Posts: 2,364
Likes: 3
From: Eustis FL
I stand corrected...
Can you still fit a new split-lip seal without at least loosening the other main caps?
How about a 460? Maybe it's because I have always had the trans off that I did the procedure?
Can you still fit a new split-lip seal without at least loosening the other main caps?
How about a 460? Maybe it's because I have always had the trans off that I did the procedure?