I just bought Mickey Thompson 35s with a 15'' rim. I need good rims, any suggestions? I would rather keep my street tires on the rims...
Also, how "bad" is it for my Jeep to go from 31s to 35s, and potentially back to 31s (since they are my street tires) or should I just take the rims off, and sell the street tires along with my old trexus 31s?

How many back spacers should I get? I want balance between height and width.

Which back spacers should I get? Anyone around Maryland, I would be happy to trade food and beer for assistance. I live in Bethesda

 

There was a lot going on in that message. What is the current setup on your jeep;wheels, tires, lift, gears? And what are you trying to get to?

 

Do you want wheel spacers or backspaced wheels? You want 3.5 to 4 inches of backpacking and probably an 8-10 inch wide wheel for the 35s.
As far as Street tires, see how the 35s ride, if you don't mind them on the road, ditch the other ones. It also depends like said above on your axles and specific set up. If you have a 3inch lift you're going to have to trim the crap out of your fenders lol

 

I run my 35x12.5s on 15x8 Pro Comp steel wheels with 3.75" backspacing.

 

Lol I realized I put backpacking in my last post. Whoops.