I'm looking to going to a new 18in wheel with a 5in back space and a set of 285/75/18 toyo AT. I do not have a lift just want to fill up the wheelwell with what I have. Also a lower Hwy RPM would be nice too $$$. Anyone running a setup similar?

 

I tyhink this will rub on the back of your fender well 5"sound like a bunch
, Im running 35s on factory wheels and no lift it rubs the control arms at full turn

 

I think you'll want at least another 1/2 of backspacing. But I believe 6 inch would be optimal.

 

With a 285??? My 285 BFG's werent even 32" tall. Surely theyd clear even with the 5" BS. ???????

 

Thats a 33.7 x 11.5 inch tire. 18 inch wheels remember.