Rear Main Seal
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New User
Joined: Oct 2003
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Rear Main Seal
I was aksed by a guy to finish a job started by some tech he knows..anyhow ill get to the point..they have the trans out i have to pull converter and flywheel..heres my questiions.
1. WOULD IT BE A ONE OR 2 PEICE SEAL
2. DO I NEED TO PULL THE OIL PAN
3. CAN I JUST REMOVE THE CAP OR DO I HAVE TO LOOSEN THE WHOLE CRANK..
4. IS THERE ANYTHING IVE MISSED OR ANY HELPFUL HINTS YOU CAN GIVE ME
Thank You....Mark
1. WOULD IT BE A ONE OR 2 PEICE SEAL
2. DO I NEED TO PULL THE OIL PAN
3. CAN I JUST REMOVE THE CAP OR DO I HAVE TO LOOSEN THE WHOLE CRANK..
4. IS THERE ANYTHING IVE MISSED OR ANY HELPFUL HINTS YOU CAN GIVE ME
Thank You....Mark
Freshman User
Joined: Jan 2003
Posts: 41
Likes: 0
need more info
Can you give specifics of the truck? Year, engine, etc....
I replaced the rear main on my 91 302 and it was a single piece rear seal ($10) and there was no need to touch the oil pan. You have done the hard part and that is getting to the seal. Once you remove the flywheel/trans etc and expose the seal you are ready to remove it. Haynes guide had some good pointers. This is what I did: Use a small awl or something sharp to punch a hole in the seal and try to screw a small screw into the seal and catch one of the metal bands inside the seal. Before you try to pull it out, screw 3 or 4 screws into the seal so you can start pulling all around it. Be extremely careful though not to scratch the metal surface that the seal rests on or you may cause a later leak. Once the seal is removed, prep the surface, insert new seal, tap it in to make sure it seats and put all the pieces back together. It has been 6 months since I replaced mine and no leaks to date.
-Jon
I replaced the rear main on my 91 302 and it was a single piece rear seal ($10) and there was no need to touch the oil pan. You have done the hard part and that is getting to the seal. Once you remove the flywheel/trans etc and expose the seal you are ready to remove it. Haynes guide had some good pointers. This is what I did: Use a small awl or something sharp to punch a hole in the seal and try to screw a small screw into the seal and catch one of the metal bands inside the seal. Before you try to pull it out, screw 3 or 4 screws into the seal so you can start pulling all around it. Be extremely careful though not to scratch the metal surface that the seal rests on or you may cause a later leak. Once the seal is removed, prep the surface, insert new seal, tap it in to make sure it seats and put all the pieces back together. It has been 6 months since I replaced mine and no leaks to date.
-Jon
