I have a 3.8 atlas with 5.39 gears. I dont have the wheel speed I would like. If I did it again I would do the 3.0. I'm going to regear to 4.56 to help some.
The Fram bashing is well deserved. I had one collapse on me 2 weeks ago. Ended up replacing all 16 lifters after that. Had a friend bring me a new filter to the Park so I didn't have to drive it back to the trailer with little to no oil pressure. :-\
I ran reds for 7 years.Only cut a sidewall once.They worked great. I bought sticky SX's last year. They work damn good. In rock only the reds work best. The SX's work super all around. They are hard on parts, plan to upgrade as they break.