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Old December 15th, 2010, 06:32 AM
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rear main seal
Can anyone tell me the correct ford rear main seal to use for a 1972 gas 350 engine? I was told a Ford 460 seal will work felpro part#BS40032
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Old December 15th, 2010, 06:53 AM
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I thought it was an AMC / Jeep seal I used on my 330. I will try to see if I can dig up the part number in my notes somewhere.
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Old December 15th, 2010, 07:04 AM
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I can't find the part number but I did find this in an old thread.

the 460 Ford seal works on the BBO 3" mains while a Ford 292 seal (BS6141) or a 258 Jeep seal works on the 2.5" SBO mains
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Old December 15th, 2010, 07:24 AM
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ok, doesnt the olds seal work?
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Old December 15th, 2010, 07:31 AM
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Originally Posted by stan 65 cutlass
ok, doesnt the olds seal work?
The factory seal is the older rope-style seal. The alternates listed here are newer neoprene lip seals, which are a better design.
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Old December 15th, 2010, 07:39 AM
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After further research I found that the ford 460 seal is for BB olds and 350 diesel olds.
thanks gearheads78, looks like the 292 is the correct one for the 350. Thanks for your help.
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Old December 15th, 2010, 07:44 AM
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While you are on the subject, is there a neoprene seal that fits the 394????

Thanx, dave
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Old December 15th, 2010, 02:07 PM
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X2 on the AMC 258 seal. Trim the ears and install off set. It is supposed to fit tighter than the 292 seal.
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Old December 17th, 2010, 06:27 PM
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Does anybody know if someone makes a graphite seal like the one available for Pontiac engines? These seem to work really well.
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