This may have already been covered at some point but a few searchs did not provide the answer. I am looking to possibly purchase a set of stock 2002 ZR2 rims to replace the one on the 96 LT Blazer 4x4 I just purchased. I am pretty sure mine would be 7" inches wide and the ZR2 rims are 7.5" wide, but would both have 6" of back spacing or offset? Or do the ZR2 rims have less to make the tires stick out more. I would plan on running 235/75R15 s on the ZR2 rims so that the speedo would not change and the torsion would not have to be cranked.

 

Stock ZR2 Wheels = 6" BS
Stock ZR2 Wheels = 15x7

 

In udder werds, they are the same.