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Discussion Starter · #1 ·
Howdy
I have a 1993 F350 flatbed dually,
I'd like to put new Kumho At51 285 75R 16 on the rear, does anyone see an issue with the fit up?
Thanks
 

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Your stock size is either 215/85R16 or 235/85R16 depending on options. You're adding 50mm (2.5 inches) of width to each tire with these. I strongly suspect they'd parachute pretty badly on stock rims. I'm also pretty certain they'd touch since you have a dually. Touching is bad, so I don't think this is the route I'd go.

If you REALLY want tires that wide in the back, then you'll need a new set of wheels. I'm sure plenty of folks will mention spacers, but that's asking for trouble in my opinion.

What is it you're trying to accomplish? Are you looking for more ride height?
 

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Discussion Starter · #3 · (Edited)
My truck is a mobile welding rig, the current tires are 8.00 16.5, scronny and dry rotted, I would like to simply beef up the rear end for highway and sandy off road (Florida back roads/pastures), without needing major changes to my stock suspension. I mentioned the 285's merely because they were on a dodge of a friend and looked good on his flatbed.
158821
158822
 

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800R16.5 is not a standard size and a 16.5 wheel REALLY limits your options these days. I'd think pretty hard about hitting up a wrecking yard and getting a set of either 16- or 17-inch factory wheels. That'll REALLY open up your options.
 

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Discussion Starter · #5 ·
My truck is a mobile welding rig, the current tires are 8.00 16.5, scronny and dry rotted, I would like to simply beef up the rear end for highway and sandy off road (Florida back roads/pastures), without needing major changes to my stock suspension. I mentioned the 285's merely because they were on a dodge of a friend and looked good on his flatbed. View attachment 158821 View attachment 158822
800R16.5 is not a standard size and a 16.5 wheel REALLY limits your options these days. I'd think pretty hard about hitting up a wrecking yard and getting a set of either 16- or 17-inch factory wheels. That'll REALLY open up your options.
Thank you
 

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The Kumho At51 285 75R 16 tires will not fit on your rims. Your rims are 16.5", and the Kumhos are 16". You could upgrade to 16" or 17" wheels, just be aware that the stud spacing has changed a few times over the years, so not just any 16" or 17" wheel will fit.

Or, you could stick with the 16.5" wheels. There are a few 8.00X16.5" tires still available. Although I couldn't find any that were radial.

Power King Super Highway II 8.00-16.5 E/10PR BSW Tires

https://simpletire.com/paid?v=1&tir...MI6_vF-JHv7QIVhfDACh243gTFEAQYAiABEgINGvD_BwE

https://www.walmart.com/ip/8-00-16-5-Power-King-Super-Highway-II-110-105L-E-10-Ply-Tire/328316789?

https://simpletire.com/brands/deest...roductLine&mpn=1020097&tireSize=8.00-16.5&v=1
 
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