Rear Main Seal
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Joined: May 2004
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From: The hills of No. Calif.
Then you have an older motor in there. Ford went to a one-piece seal in 1981 and have used them ever since.
In that case you need to drop the pan (it can usually be done with the motor still in the truck) and remove the rear main cap, and work around the crank.
In that case you need to drop the pan (it can usually be done with the motor still in the truck) and remove the rear main cap, and work around the crank.
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Senior User
Joined: Jan 2003
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From: Prairieville, Louisiana
No, its the original motor in the truck and it has a two piece. Thats what came out of the truck when I rebuilt the motor and no work has ever been done to the internals.
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From: Prairieville, Louisiana
I don't know the exact casting number but my heads and most other parts have the E7TE castnig number.
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Joined: May 2004
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From: The hills of No. Calif.
So it looked like this?
Of course this is just the cap half of the seal. Anyway, you have to drop the pan to replace a two-piece seal.
Of course this is just the cap half of the seal. Anyway, you have to drop the pan to replace a two-piece seal.
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Senior User
Joined: Jan 2003
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From: Prairieville, Louisiana
The main cap doesn't quite look like that it has different grooves. But I just went to two different auto part stores and they both told me it is a one piece seal. So I guess my gasket kit came with the wrong one and that why it is leaking. I'm pretty pissed off to say the least right now. What do I have to do to change a one piece.
Is there anyway you can show me a picture of the one piece to make sure I have the right one? Or at least a part number?
Is there anyway you can show me a picture of the one piece to make sure I have the right one? Or at least a part number?
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Joined: May 2004
Posts: 12,170
Likes: 5
From: The hills of No. Calif.
It looks just like a regular oil seal. I have a couple of Fel-Pro numbers, BS40620 gets you the standard grade seal and BS40644 gets you the premium PTFE rubber seal for about 5 bucks more. Here's a pic, although not a good one:
It fits in directly from the back which is why I said you need to pull the tranny and flywheel. I don't know how you installed your two-piece seal in the one-piece housing, if it's right in the back groove where the one-piece seal goes then you should be okay otherwise you'll be looking at dropping the pan as well.
It fits in directly from the back which is why I said you need to pull the tranny and flywheel. I don't know how you installed your two-piece seal in the one-piece housing, if it's right in the back groove where the one-piece seal goes then you should be okay otherwise you'll be looking at dropping the pan as well.
Last edited by TigerDan; Aug 21, 2006 at 05:45 PM.