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Mod | | | Forums66 Topics128,163 Posts1,056,962 Members48,458 | | Most Online14,466
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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For helping keep this great
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| | | | Joined: Apr 2016 Posts: 5 New Guy | | New Guy Joined: Apr 2016 Posts: 5 | Are the 55' 2nd series GMC 150 3/4 ton dually wheel size and offset similar to the 3600 or 3800 dually setup.
I am having issues figuring out the right offset to fit my truck.
The problem is the truck is (6) hours away and I cant retrieve it until I replace the stock wheels and tires which I will do on site prior to loading it up.
The manual states my size is 16x6-8lug on 6.5 but I swear it is a 15" wheel.
1955 GMC 150
3/4 ton dually flatbed "The Farmtruck"
3rd generation all original with 40k miles
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