i have a set of 18x8.5 inch chrome wheels , 6 spoke , perfect condition . with nitto terra grappers , size 285/60/18 , comes out to a 31x10.5 lookin to sell them as im going low , asking 1,000 tread has 60 percent left and one tire has a plug and it still holds after sometime so no worrys . need to get rid of them sittin in apartment stacked lol

 

nitto terra grapler 285-60-18

 

My tires are 285/75-16's also, never ever had a problem with rubbing, and I used to off-road a lot. Also got some Enkei something-something wheels, don't remember. They are discontinued, but were real cheap ($75 each) at Discount Tire. I'm sure you could find something similar. No bling-bling, but it looks a lot better than stock IMO. Especially for the price....I think I got $200 for my stock Z71 wheels on ebay.

 

What do you use your truck for, does it stay on the pavement most of time with the occasional off road (dirt roads with ruts, going to favorite camping grounds), or does it see a lot of mud holes, rocks and steep inclines, something you would see in Utah that require extensive use of 4Lo?

If you choose the first, then 20's will work fine, plus you will have the performance of a larger wheel (less sidewall flexing) on the pavement.

If you choose the second, stick with 16's so you can let out some air for the extra traction (more sidewall flexing) to overcome your obstacle whether it be mud, rocks or steep inclines. I have had good luck with 10-15 psi in tires but you are pretty much limited to 4Lo and second gear. If you need to go faster then you have to add air.