Replacing body mounting cushions?
Thread Starter
Navigator
Joined: Jun 2013
Posts: 9
Likes: 0
Replacing body mounting cushions?
On page 214 of my 1975 assembly manual I see the locations and proper assembly of these body mounts. Is the replacement of these mounts possible with just a frame jack in my garage or should I have it done at a shop with a lift? Also I did not get new bolts with the kit I purchased. The assembly manual does not give the size of the bolts but part #334766. The only nut shown is for position 1 #3930109. They also show adhesive cement #9981098 is this necessary for urethane bushings?
Mike
Mike
Burning Brakes
Joined: Oct 2010
Posts: 1,192
Likes: 7
From: Wentzville MO
Search the forum but it can be done with the car on jack stands. Its a tough job but first start by getting some solvent on all the body bolt threads and let soak for a few days. Don't be surprised if a few don't come out and may need to be cut out. 2 and 3 are the toughest as they have a cage nut in the frame. 
Drifting
Joined: Apr 2007
Posts: 1,970
Likes: 45
From: Cameron Park CA
I helped my friend Rob remove the body on his '70. The #3 & #4 were problematic. Before you think about installing new body mounts, you're going to have to free up all eight body bolts. Breaking the captive nuts loose or breaking the bolts are what you have to contend with. If/when that happens your job just got very complicated.
Good luck!
Pete
Good luck!
Pete
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Melting Slicks
Joined: Dec 2008
Posts: 2,070
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From: N.Richland Hills Texas
My doors ect did not line up... So before messing with hinges I had the mounts replaced.... I had read all the threads in here and knew it was not a job for me.... The shop I use does this on a weekly basis so I took it there.... Had the differential lube changed while it was there.... Best money spent.....
Safety Car
Joined: Jun 2000
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From: St. Louis MO
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Here is how-to when I did my '65 mounts. Should be same or very close on C3.
Click Here
George
OLD VS NEW
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George
OLD VS NEW
Thread Starter
Navigator
Joined: Jun 2013
Posts: 9
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Thanks guys, the weather here has been single digits so I have not had the urge yet to lay on the concrete floor but rust buster coming out soon. I took both doors off to replace the pins in the hinges and figured everything would be lighter. I will get it done!
Drifting
Joined: Mar 2011
Posts: 1,886
Likes: 9
If you have a coupe, removing the doors will certainly lighten the body without any other issues. If you have a convertible, you must brace up the door openings, or the body will flex and flop around like you wouldn't believe.
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
Poly bushings vs. rubber are a downgrade and a step backwards in any case.
Intermediate
Joined: Apr 2008
Posts: 41
Likes: 0
From: Bellevue IA
Here is a post with a number of source links in doing a "partial" lift to replace the mounts.
http://forums.corvetteforum.com/c3-t...-question.html
http://forums.corvetteforum.com/c3-t...-question.html
Burning Brakes
Joined: Oct 2010
Posts: 1,192
Likes: 7
From: Wentzville MO
