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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: Dec 2015 Posts: 2,063 Big Bolt Forum Moderator | | Big Bolt Forum Moderator Joined: Dec 2015 Posts: 2,063 | welcome to the site! Only thing that seems for sure is that it is a 4400 cab and nose. SM420 is a good strong trans. You may be pulling stuff apart and playing detective to actually figure out what you have. Counting and measuring leaf spring packs and also measuring how wide the front axle is may help narrow that stuff down. Someone may have put a 4400 cab on a 1/2 ton frame and just swapped the rear axle out. | | |
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