Which Rear Main Seal?

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04-10-2013, 08:47 PM

kgkern01

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Which Rear Main Seal?

I am going to be assembling my new 385 this weekend and am about to order the miscellaneous parts I need. There appear to be many 1-piece SBC part#'s and 2 Felpro LT1 specific styles. Which one is the best to get?

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04-10-2013, 08:58 PM

SoxXpupPeT

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Quote:

Originally Posted by kgkern01

Go to any parts store an get a stock RMS kit. Its a 1 piece seal. Ive always had good luck with felpro.

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04-10-2013, 09:46 PM

93M6Formula

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I bought one for a 96-98 vortec 5.7 just cuz it has an extra piece that presses against the flywheel for added sealing. Purely opinion really whether it does better or not. So far so good.

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04-10-2013, 09:55 PM

ramair 1

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felpro here also, no leaks so far

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04-11-2013, 01:18 AM

Spartan7

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There are 2 Fel-Pro ones, one with PTFE (teflon) and one without. I read that the one with PTFE is the better one, so that's what I got. Fit like a glove.

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04-11-2013, 06:13 AM

leadfoot4

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Quote:

Originally Posted by Spartan7

There are 2 Fel-Pro ones, one with PTFE (teflon) and one without. I read that the one with PTFE is the better one, so that's what I got. Fit like a glove.

Agree.

The Teflon seal is the "second generation" seal. That's what's in my '96 Z-28 now, after the original seal started leaking (don't they all???)......