I agree the ratio for should be 5.57 for 35s and 5.86 for 37s. I'm going to run 5.38s
on 35s. I have the factory 4.6 gears, if I had the 4.3 gear I would be where I needed to be. I'm going the cheapest route I can at the moment but still using as many parts I can from RR for the build.