Thanks. I'm in CA, and interested in 1 ton running gear.Do you have overdrive? Go up to 37" tires and without OD you would be running about 3500 RPM at 75 mph. With 37" tires and OD you would be running about 2550 RPM on the freeway at 75 mph.AlwaysBlazinII said:Any idea how crazy 5.13's would make my rig run?