Backspacing with extended RA's

[91Sploder]

I did a Superlift 5.5" lift w/ extended radius arms about 6 months ago to my truck and I ran out of money for wheels and tires. Now I'm ready to purchase some 33x12.5-15 on a 15x8 wheel. My question is will a 3.75" bs work with the extended radius arms or will I be rubbing them? Any help would be greatly appreciated. Thanks!

 

[Chew_12]

3.75 is what everyone recremmends here. I am running the same thing your are and they rub a little bit, but nothing bad.

 

[91Sploder]

Alright, the guys that I'm buying the wheels from werent sure what size to order but when I told them 3.75" they said that sounds like it should work fine. Thanks for the help