With the Fabtech 6" lift they recomend a 315/75R16 tire and a 16x9 rim with 4 5/8 back spacing! What size tire is that in inches? Like is it a 35x12 or something? Also if I get a 16x10 rim should I get a rim with 4 1/2 BS instead of 4 5/8 due to the different rim size? Any tire and rim info here?

 

34.6x 12.4 (or roughly a 35x12.5 tire - like you said). Can't help with the backspacing...

 

Yes for the second question. You want to make the rim stick out alittle more due to the width of the wheel. This will keep you from possibly rubbing the fender wells..........peace