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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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Nov 2011 Posts: 60 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2011 Posts: 60 | Is there a difference in the frames from a shortbed 1956 GMC truck compared to a 1958 Shortbed Chevrolet truck?
Thanks | | | | | Joined: Feb 2004 Posts: 29,833 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,833 | 6 or 8 cylinder? The GMC six was a couple of inches longer than the Chevy, so the front crossmember will have different engine mount holes, and the V8 GMC's used Pontiac engines, so the motor mount holes and/or crossmember positions might be a little different.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Nov 2011 Posts: 60 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2011 Posts: 60 | The GMC already has Chevrolet 350 in it. OK, now my next question. Will the body parts (bed, cab and front fenders, inner fenders, core support) from a Chevy fit on a GMC frame? | | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy kcode, as far as I know the front end sheet metal is longer on 1958 models and therefore the 1958 frames are longer in the front. I believe there might be a difference in the hood hinges between the 1956 and 1958 model years as well, hope that helps. | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | everything except the core support from 56 Chev will mount on the 58 GMC frame, but here's a 55-57 front clip on a 58 frame, chalk mark is how much needs to be removed to mount the bumper properly [after re-drilling holes] because of the extra length 3B mentions - the core support can probably be rigged is you have the Chev frame to rob the mounts from Bill | | |
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