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I've decided to go with the 4" Donahoe Racing lift for my '06 4x4. Picked out my perfect wheel. American Racing Mojave Teflon 17x8's. OF COURSE SOMETHING GOES WRONG! The tires I want to run are the BFG A/T 315/70R17. BFG specs state that the tire fits a 8.5"-10" wheel. Does this mean I am ***** out of luck? Or is it possible?
Not necessarily. A 12 inch wide tire on an 8 inch wide rim should be fine. I ran my 305's on 8" wheels and they were fine. My neighbor had 315's on 10" wheels and they actually looked kinda goofy. You'll just have to be careful with the tire pressure.
What do you mean by careful with the tire pressure. When I have to haul payloads during the week, I will run tires at Maximum recommended PSI. When I drive on the beach (about 24 times a year) I will air down to about 20-30 psi. Is this gonna create a pinch problem aired down, or is it gonna be a sketchy amount of bead pressure at maximum psi. Thanks.
There is a lot of guys on here that run the 315/70R-17 BFGs with 8" rims. I run them on the stock 17x8" rims without a lift and I have had no problems.
When you air down for the Padre sand the narrower wheel will be better. The bead will stay seated better than on the 10" wheel. The 10" wheel will stick out way to far on an 05/06 too. I fyou don't plan on using the truck to anywhere near max GVWR you'll be fine.
What I meant by the tire pressure is on the road. If the pressure is too high, with a narrow wheel, you'll wear the center that much quicker. That's all I was referring to.
BFR made a good point. If you run the 8" wheel you'll have to run a lower pressure on the street to get proper tire wear. Just rember to air up under load. Experiment with air pressure and chalk, you'll find what works best for your truck.
i cant add anything to this post, but this is the best advice, though it is not recommended by the manufacturer, you can run this combination with no problems, it will just require a bit more monitoring by you, as said, check with chalk, run a little lower air pressure, then add when under load. if done properly...aka dont run 10k empty at max psi...your tires will wear evenly and last a long time. if you do want to run at max psi for extended periods of time, a narrow tire such as the stock size is the only way to go. wider always amplifies the fluctuations in wear between empty and loaded