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I have an F250. I run 35x12.5 on stock 18" wheels. I had to trim a tiny bit off of my mud
flapt to avoid rubbing at full lock. Lots of room. I used a Icon 2.5 inch leveling kit. I believe the F350 would use the same kit.
I believe stock wheels are 8" wide. Most people recommend 10" wheels for 12.50's
The factory 16" wheels on my 03' Lariet were 7". I think the later model 17's and 18's are wider though. If you have the earlier 16's like mine you can get a 35x10.5x16 from Super Swamper. This is the size I was going to run before I found my setup. By the way, I'm running a leveling kit with 35's but had to space my inner fenders back a little and trim the lower valance just a bit.
Last edited by jdboy; Sep 10, 2010 at 08:36 PM.
Reason: add info
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