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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: Sep 2008 Posts: 46 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2008 Posts: 46 | am going to get rid of the split rims on my 52 3800 i will replace with a 16 probably a 235/75 16, the backspace needs to be 31/2from what i have read do i need to know an offset#,as i already have 4 rims that i bought that i do not need i am wanting to be as clear as i can at the tire store, i also know this has been discussed before,thanks for your patients and advice, trying | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | On my 1 Ton, I have 2 rims from a 70s to 80s Ford product and two trailer OEM style rims. They look identical but the trailer rims are a little heavier. The rim width is 6" and the back spacing is around 4". Apparently the white spoked rims that they are selling now will fit too. I had the weights on the back side of the rim done with tape weights to make sure I had enough clearance at the tie rod ends. I think ordinary weights would do just fine.
A 235/85/16 would put you closer to the original tire height. | | | | | Joined: Feb 2004 Posts: 29,841 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,841 | Is your 3800 a dual-wheel rear unit? If so, you'll find that 16 inch drop-center rims for tubeless tires will not fit over your brake drums. The straight-center lock ring wheels for tube type tires will just barely clear the drums on some models. My 1959 3800 had 18" tube type tires on split rims as standard equipment, and I believe a 19.5" tubeless tire rim was the direct replacement for them. The older step-van bread trucks with a 1-ton chassis ran those wheels, but I retired the truck before I found a set of replacement wheels.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
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