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Labor Day Putting down your wrenches or time for
MORE wrenching? 
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jan 2001 Posts: 198 Member | | Member Joined: Jan 2001 Posts: 198 | does any one know where i can get the frame dimensions for a 72 GMC 3/4 ton truck so i can check the frame aligment.. thanks | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | The service manual?
A body shop with a frame machine? | | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | I don't have an answer, but if you find the information I'd like to have it also. I have a '72 C20 frame out back and would like to be able to check it out.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | the assembly manual is what you want for detail, but if you want to see if things are the right shape, just measure diagonals everywhere, like front left tip to rear right tip compared to front right tip to rear left tip ... do end to end, front to first crossmember, to second, to third, then back to first, etc
if one diagonal measurement is much off it's counterpart, it's wracked, if they all match up well, you're ok
Bill | | | | | Joined: Jan 2001 Posts: 198 Member | | Member Joined: Jan 2001 Posts: 198 | i know the front frame horns are bent, as i can see the front bumper does not line up , and want to get it centered again, but dont think its bent back as far as the front crossmember,, | | |
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