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351W Rear main seal?
#1
Is it a one piece or 2? Mine seems to be leaking and I am just trying to figure out how long it will take to chane it out. I think the earlier models had a 2 piece, but I am not sure what year it changed.
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#2
I am 99% confident it is a one piece which means more work for you.
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.Confusedmokin:
Roads? Where we're going, we don't need roads.

[Image: sig2.jpg]
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#3
That's what I figured was going to be the case. Such is life though.
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#4
What year model block? I used a late 70's block for my 393W. It is a 2 piece. I'm not exactly sure when the 1 piece became standard, but it is some time in the mid to late 80's.
'72 TBA...
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#5
As far as I know the truck is completly stock, so I would guess the block is an 87' as well. I,m just not exactly sure what year they changed from the 2 piece to the 1 piece.
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#6
cavscout Wrote:As far as I know the truck is completly stock, so I would guess the block is an 87' as well. I,m just not exactly sure what year they changed from the 2 piece to the 1 piece.

I believe it changed with Fuel injection....so u should be a one piece!
SIZE MATTERS! :rebel: Uncle Ted [SIGPIC][/SIGPIC]
http://www.wheelindixie.com
http://www.coastalcarolinaoffroad.com
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#7
This one is still running a carb, but I am about 99% sure it is a one piece. Thanks for the help guys.
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#8
Call the parts dept. @ your local Ford store, they can tell you for sure! :xyxthumbs:
Psalms 27:1
[SIGPIC][/SIGPIC]
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#9
I talked to a buddy of mine that has been a ford mech for about 15 years. He does not have much exp on ones this old, but is sure it is a 1 piece. Just more work to get it changed out, no big deal.
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