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Click on image for the lowdown. 
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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 2015 Posts: 18 'Bolter | | 'Bolter Joined: Jan 2015 Posts: 18 | Frame rails at the front of the truck are the same width from 60-66. The frame tips (horns) are different from 60-62 and 63-66, which is why the bumpers won't interchange. But inner and outer fenders, hoods, and core supports all interchange 60-66.
The rear frame rails are wider (farther apart) for 60-62, and closer together for 63-66.
Front crossmembers could have a tab at the front depending which engine was ordered and whether that engine had front or side mounts (some engines had both). | | |
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