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1pc rear main seal... Teflon or rubber?

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Old 03-10-2004, 09:25 AM
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
1pc rear main seal... Teflon or rubber?

looking around, i have a choice of two felpro rear main seals...

Fel Pro BS40626 -- Teflon..

or

Fel Pro BS40520 -- Rubber. i found a pic of this one online, its attached below.






so whats the diff between the two, and what would i want? while i have the trans off, i figure NOW is the time to replace the seal on my motor... before it ruins my new T56 clutch.
Old 03-10-2004, 09:32 AM
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Car: 91 Camaro Vert
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Transmission: 2002 LS1 M6
forgot pic of rubber one:
Attached Thumbnails 1pc rear main seal... Teflon or rubber?-bs40520.jpg  
Old 03-10-2004, 09:40 AM
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ede
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never used one but i think i'd go with teflon
Old 03-10-2004, 10:10 AM
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Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Where are you buying those Mr. Dude? Im needing to replace my rear seal and cant find them....
Old 03-10-2004, 11:16 AM
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by Stekman
Where are you buying those Mr. Dude? Im needing to replace my rear seal and cant find them....

i just went to advanceautoparts.com and they redirected me to parts america...

athough when i goto get it, im just going to walk into the parts store.. they SHOULD have it in stock...



i figure, since im swapping to a manual, and im going to have the crank empty anyway, i might as well replace the seal.
Old 03-10-2004, 11:33 AM
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ede
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since he posted the pn any fel pro dealer ought to be able to get you one.
Old 03-10-2004, 12:06 PM
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Car: 1989 Trans Am
Engine: 355 HSR
Transmission: Pro-Built 700r4 w/ 3400 converter
Axle/Gears: 10 bolt w/ 3.42 gears
I got the teflon one a couple weeks back from Jeg's when I ordered a bunch of other stuff...
Old 03-10-2004, 07:19 PM
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Car: 90 Camaro
Engine: 418 LS3 whipple charged
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Axle/Gears: 3.27 9 bolt
I had the same question a couple of months ago and my engine builder said to go with the rubber seal, but I can't rember what the reason was.
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