Cork or rubber gasket for transmission pan? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mocwon · 10-28-2005, 02:55 PM

Which do you prefer and why; also. do you pookey it to the pan?

**tnblazerk5** · 10-28-2005, 03:11 PM

Cork cause i have never had any luck with a rubber gasket on a trans pan

Longhorn Man · 10-28-2005, 08:21 PM

I like the hard composite ones that come with the NAPA filters, reusable and never had a problem with leakage.

Gordo · 10-28-2005, 09:42 PM

I agree with Longhorn Man and as long as you have a good,clean,straight pan, no "pookey" nesessary, as with good gaskets in any application.

chevymad · 10-28-2005, 09:54 PM

Rubber and definately use no sealant. Thing with the rubber though is to make sure you don't overtorque the bolts. I use only the rubber ones at work never have any problems. I hate scrapin the cork ones off!!

jimfulco · 10-29-2005, 11:19 PM

I think it's Purolator that has the gasket with about 4 undersized holes so you can stick the bolts through & hold it in position.

Portmod7 · 10-30-2005, 12:56 AM

I think you can get a rubber one with metal spacers molded into the bolt holes, so you just tighten the bolts till they are tight against the spacers. Very nice gaskets, I love them, gettin a pan that is not chrome will help too.

**truckdude239** · 10-30-2005, 01:03 AM

umm it don't brother me which one i use as long as it don't leak lol baseliy i get what ever the part store has lol

86swb · 10-30-2005, 09:54 AM

One question and so many different answers. I think Longhorn Man has the one I would use. I just take it in and tell them to change the fuid and filter. Never have thought about which type of gasket they use.

But now I am. As long as the gasket does not leak that was all I cared about. Besides, if it did I would just take it back. I use to do this myself but now it is too much of a pain to get rid of the old oil.

RICHARD MORGAN · 10-30-2005, 11:45 AM

How well do the aftermarket aluminum pans seal? Anybody had any bad experiences?

Mudder · 10-30-2005, 12:15 PM

I have had better luck with my aftermarket aluminum that I ever did with a factory pan.

mocwon · 10-30-2005, 07:43 PM

It's a cast aluminum after market pan. The cork gasket leaked so I replaced it with a rubber gasket, problem solved, no more leaks. Thanks for the input.

krue · 10-30-2005, 08:55 PM

The rubber gaskets have always worked for me.

10-28-2005, 02:55 PM	#1
mocwon Keep On Truckin' Join Date: Mar 2003 Location: Buda, Texas Posts: 1,354	Cork or rubber gasket for transmission pan? Which do you prefer and why; also. do you pookey it to the pan? __________________ Just Passin' Thru Some projects are like herding cats; others are like putting out fires; this one was like herding cats on fire.....

10-28-2005, 03:11 PM	#2
tnblazerk5 User #12137 Join Date: Apr 2004 Location: kingsport,upper east tenn Posts: 11,598	Re: Cork or rubber gasket for transmission pan? Cork cause i have never had any luck with a rubber gasket on a trans pan

10-28-2005, 08:21 PM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Cork or rubber gasket for transmission pan? I like the hard composite ones that come with the NAPA filters, reusable and never had a problem with leakage.

10-28-2005, 09:42 PM	#4
Gordo Registered User Join Date: Jan 2001 Location: Killingworth, CT. USA Posts: 3,378	Re: Cork or rubber gasket for transmission pan? I agree with Longhorn Man and as long as you have a good,clean,straight pan, no "pookey" nesessary, as with good gaskets in any application. __________________ 1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist.

10-28-2005, 09:54 PM	#5
chevymad Registered User Join Date: Jan 2001 Location: skamokawa, WA, USA Posts: 527	Re: Cork or rubber gasket for transmission pan? Rubber and definately use no sealant. Thing with the rubber though is to make sure you don't overtorque the bolts. I use only the rubber ones at work never have any problems. I hate scrapin the cork ones off!! __________________ 70 C10 long fleet, 355/200 4r, 6 lug disc conversion, 3" drop 70 gmc changed to 67/8 chevy, 454 with voodoo cam, th400, all 74 running gear.. in progress

10-29-2005, 11:19 PM	#6
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	Re: Cork or rubber gasket for transmission pan? I think it's Purolator that has the gasket with about 4 undersized holes so you can stick the bolts through & hold it in position.

10-30-2005, 12:56 AM	#7
Portmod7 Registered User Join Date: Dec 2004 Location: Aztec, NM Posts: 388	Re: Cork or rubber gasket for transmission pan? I think you can get a rubber one with metal spacers molded into the bolt holes, so you just tighten the bolts till they are tight against the spacers. Very nice gaskets, I love them, gettin a pan that is not chrome will help too.

10-30-2005, 01:03 AM	#8
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,236	Re: Cork or rubber gasket for transmission pan? umm it don't brother me which one i use as long as it don't leak lol baseliy i get what ever the part store has lol

10-30-2005, 09:54 AM	#9
86swb Born a Chevy Man Join Date: Apr 2005 Location: Navarre, Florida Posts: 10,221	Re: Cork or rubber gasket for transmission pan? One question and so many different answers. I think Longhorn Man has the one I would use. I just take it in and tell them to change the fuid and filter. Never have thought about which type of gasket they use. But now I am. As long as the gasket does not leak that was all I cared about. Besides, if it did I would just take it back. I use to do this myself but now it is too much of a pain to get rid of the old oil. __________________ John or 86 (Viet Nam combat Vet-BIG RED ONE) '65-'66 1986 Chevy SWB Silverado 1984 Chevy Longbed Silverado New Kia Sportage (Wife's car and she loves it) CHEVY, American made w/pride! If you can read this, YOU NEED TO THANK A TEACHER! If you can read this in ENGLISH, PLEASE THANK A SOLDIER! GOD BLESS AMERICA AND BLESS OUR FIGHTING TROOPS

10-30-2005, 11:45 AM	#10
RICHARD MORGAN Registered User Join Date: Jan 2004 Location: HERNDON VA Posts: 216	Re: Cork or rubber gasket for transmission pan? How well do the aftermarket aluminum pans seal? Anybody had any bad experiences?

10-30-2005, 12:15 PM	#11
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	Re: Cork or rubber gasket for transmission pan? I have had better luck with my aftermarket aluminum that I ever did with a factory pan.

10-30-2005, 07:43 PM	#12
mocwon Keep On Truckin' Join Date: Mar 2003 Location: Buda, Texas Posts: 1,354	Re: Cork or rubber gasket for transmission pan? It's a cast aluminum after market pan. The cork gasket leaked so I replaced it with a rubber gasket, problem solved, no more leaks. Thanks for the input. __________________ Just Passin' Thru Some projects are like herding cats; others are like putting out fires; this one was like herding cats on fire.....

10-30-2005, 08:55 PM	#13
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: Cork or rubber gasket for transmission pan? The rubber gaskets have always worked for me. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"



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