Thread: 351W rear main seal
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Old 02-07-2005, 02:53 PM
ORFIA ORFIA is offline
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Join Date: Mar 2004
Location: Portland, OR
Cobra Make, Engine: UM 289 FIA, 396W stroker
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Default 351W rear main seal
I'm in the process of replacing my wasted rear main seal (stroker 351W)... I did a search and didn't find an answer-
It looks as though Ford switched over the one-piece seals in 1985 or so...
If my block is newer than that- but is there any reason I can't use the older two-piece style??
Is the groove itself different?
(Block is still in car, I'd rather leave it there...)

thanks for any help,
Russ R
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