TH 350 filter change

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Dec 29, 2008 | 05:47 PM

red 77

Thread Starter

Cruising

Joined: Dec 2006

Posts: 10

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TH 350 filter change

I'm going to change the filter on my transmision and would like to know what type of gasket sealer to use. I haven't seen anything posted on this yet and have been checking for quite a while. Thanks in advance for any answers. I can't get over all of the information available on this site.

Dec 29, 2008 | 06:00 PM

BKbroiler

Le Mans Master

Joined: May 2002

Posts: 5,086

Likes: 786

From: Lebanon Township New Jersey

Don't use any sealer. If the rail of your pan is flat and you install it correctly, it won't leak. I've done it this way on my 77 several times.

Dec 29, 2008 | 06:10 PM

1nicecorvette

Burning Brakes

Joined: Jul 2008

Posts: 876

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From: Canastota Ny

youll get mixed results but the way to install it is dry. usually you hand tigthen them but i think from reading here that the tourq specs are 13-15 lbs dont over tighten them that will warp the pan and you will be starting all over again.

Dec 29, 2008 | 09:22 PM

mikem350

Melting Slicks

Joined: Feb 2006

Posts: 3,105

Likes: 96

From: Sunrise FL

Run it for a week an retighten. Use 2 fingers on the ratchet (don't overtighten)

Dec 30, 2008 | 02:04 AM

SanDiegoPaul

Race Director

Joined: Sep 2002

Posts: 10,362

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From: San Diego - Deep Within The State of CONFUSION!

Quote:

Originally Posted by mikem350

Run it for a week an retighten. Use 2 fingers on the ratchet (don't overtighten)

Exactly!

Never, no let me rephrase that; NEVER use sealer on a trans pan gasket!

Dec 30, 2008 | 05:11 AM

red 77

Thread Starter

Cruising

Joined: Dec 2006

Posts: 10

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Thanks for the replies everyone, they're much appreciated. No sealant it is.

Dec 30, 2008 | 12:33 PM

birdsmith

Melting Slicks

Joined: Feb 2006

Posts: 3,428

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From: Japan

At the very most use 3 or four small dabs of 3M weatherstrip adhesive to hold the gasket in place on the trans before you install the pan. Otherwise, just lift the pan up into position with a couple bolts thru the gasket. Make sure the pan rails are absolutely FLAT and everything is CLEAN before you put it back together.

Dec 30, 2008 | 12:48 PM

markdtn

Le Mans Master

Joined: Aug 2003

Posts: 7,720

Likes: 12

From: Chattanooga TN

Quote:

Originally Posted by birdsmith

I would use a few blobs of grease before I used any sealer on a transmission pan. If you use a GM filter kit the gasket is flat instead of folded, I recommend that. You don't need any sealer then.