Originally Posted by busyfixin
37" Irocks are a fair bit smaller than the 36's. I bought 37's because I wanted a 35" Irok, but they don't make one. 36's tend to measure between 35.75"-36.5" tall. 37's tend to measure 35.25"-35.75". The 37's are also narrower, despite the marked wider width.
I had a set of 37's at the same time my son in law had a set of 36's. When mounted on 2 YJ's sitting side by side with the same psi we ran a level across them. They were the exact same height. But, the 13.50 36's were wider than the 14.00 37's.