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Body mount shims

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Old Mar 29, 2009 | 12:28 AM
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Default Body mount shims

I will be putting the the body of my '69 vett back on the frame soon and would like to know how to determine the amount of shims to put on each of the eight body mounts?

Last edited by barbs '69 resto; Mar 29, 2009 at 12:32 AM.
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Old Mar 29, 2009 | 08:44 AM
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I will be interested to see the anwser on this one also as I will be replacing my body on the frame shortly. I know the "book" answer is to count and label the shims as they come off and replace them in the same spot. Another thing I failed to do during disassembly along with labeling bolts and counting/labeling shims on the trailing and control arms.
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Old Mar 29, 2009 | 09:38 AM
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I would like to know if there is a safe way to change them with the body still on. I don't plan on taking the body off until I retire (about 15 years away) but I want to change them because they don't look so good.
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Old Mar 29, 2009 | 10:14 AM
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http://forums.corvetteforum.com/c3-t...with-pics.html

Here's a good thread.
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Old Mar 29, 2009 | 11:30 AM
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Default shims

I'm assuming that the factory might have put a set amount of shims on body mounts 2 and 3 maybe 2 a piece on each mount the used a gauge of some sort to measure the height from top of frame to the top of the top shim and added or removed as needed to make them all the same height. Body mounts 1 and 4 could also have a set amount but could be tweaked in after body was installed. In any case this is how I will probably install the shims.
Any comments on this theory would be appreciated.
By the way, I did make note of the amount of shims that were in place when i removed the body but I have reason to believe that Bubba was messing with the shims 35 years ago.
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Old Mar 29, 2009 | 11:44 AM
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I am in the middle of changing mine, i am just going to install 1-2 washers and call it good.
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Old Mar 29, 2009 | 12:47 PM
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Use anti-sieze on the bolts and on trailing arm bolts. no more sawz-all.
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Old Mar 29, 2009 | 04:46 PM
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Hi B 69 R,
I would put 2 shims on each mount. Set the body and then start to check the gaps on the doors and hood. You can really only 'call it good' after the doors and hood open and close properly and the gaps are acceptable.
The shims on the hood and door hinges have some effect on fit but so the body shims.
Regards,
Alan

Last edited by Alan 71; Mar 29, 2009 at 04:52 PM.
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Old Mar 29, 2009 | 06:20 PM
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The mount kit that I bought recommended starting with 2 shims per mount and adjusting from there. I was putting the body down on a replacement frame so there was history to the assembly. Much to my suprise the gaps aligned nicely with 2 shims per mount. I did add a 3rd shim to the #4 mount on the pass. side since there was some clearance.



Rick B.
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Old Mar 29, 2009 | 07:43 PM
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My kit didnt come with shims? I guess i will have to guess? Measure the shims that are there and use a washer of equal size.
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