Support Beam Question?
Thread Starter
Burning Brakes
Joined: May 2006
Posts: 1,097
Likes: 2
From: Richfield Utah
Support Beam Question?
Wow, what a busy summer. I haven't been on for awhile. I appologize for that. I haven't even had a chance to drive the car this summer. I have done a complete rear end rebuild, with exeption to gears, they were ok. I rebushed everything w/graphit poly bushings. I also changed all the U-joints, everything is nice and clean. I ran into a bolt problem. So I have my brother replating alot of the bolts that are specialty bolts. The rest I was able to find new. What a load of work.
My question is: I am putting the chunk, and rearend cover w/x-member back in place. I see in the FSR that there is some type of sealant that is used on the trans, and chunk on reinstallation. Can anyone tell me if that is necessary, and what to use? Also, I removed the sound deadening from the beam will it be noisy, and have to be replaced? I guess that sums it up. Thanks, Tom
My question is: I am putting the chunk, and rearend cover w/x-member back in place. I see in the FSR that there is some type of sealant that is used on the trans, and chunk on reinstallation. Can anyone tell me if that is necessary, and what to use? Also, I removed the sound deadening from the beam will it be noisy, and have to be replaced? I guess that sums it up. Thanks, Tom
Melting Slicks
Joined: Dec 1999
Posts: 2,816
Likes: 2
From: Austin, TX
There are various opinions on the adhesive. Many of us run the beam without the adhesive and it's just fine. I've seen others use liquid nails on it.
I removed the sound deadener from mine also and did not replace it. I didn't notice a difference at all. No additional noise, vibrations, or anything.
I removed the sound deadener from mine also and did not replace it. I didn't notice a difference at all. No additional noise, vibrations, or anything.
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
There are various opinions on the adhesive. Many of us run the beam without the adhesive and it's just fine. I've seen others use liquid nails on it.
I removed the sound deadener from mine also and did not replace it. I didn't notice a difference at all. No additional noise, vibrations, or anything.
I removed the sound deadener from mine also and did not replace it. I didn't notice a difference at all. No additional noise, vibrations, or anything.
Pro
Joined: Sep 2004
Posts: 505
Likes: 1
From: Guntersville Alabama
I left the sound deadnor material on the c-beam.The adhesive was very brittle. Not sure what the purpose for this stuff is. I guess it was meant to take away any relative movement in the connection at either end. I tightened the bolts a little more and did not apply any adhesive. So far, no problems.
93cruiser
93cruiser
Last edited by 93cruiser; Jun 19, 2007 at 09:31 PM.
Drifting
Joined: Jun 2001
Posts: 1,997
Likes: 1
From: Lake Ozark MO
Hey, it's GM. You will always have some type of fluid leak that will migrate back and cover every component behind the engine. It's a love/hate relationship. I hate having to wipe up a slight film at every oil change but it is protecting my *** from corrosion.
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Thread Starter
Burning Brakes
Joined: May 2006
Posts: 1,097
Likes: 2
From: Richfield Utah
Le Mans Master
Joined: Jul 2001
Posts: 6,252
Likes: 2
From: Silicon Valley Kalifornia
If you drive where they 'salt' the roads in snow conditions then please do put ANY kind of RTV (silicone) sealant between C beam and diff. and between C beam and tranny. Actually I would do it anyway 
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
My question is: I am putting the chunk, and rearend cover w/x-member back in place. I see in the FSR that there is some type of sealant that is used on the trans, and chunk on reinstallation. Can anyone tell me if that is necessary, and what to use? Also, I removed the sound deadening from the beam will it be noisy, and have to be replaced? I guess that sums it up. Thanks, Tom
The "sound deadner" addresses a resonance issue at certain rpms. Once people start modifying their cars (exhaust and such) it's really not applicable.
