I went from a Jeep TJ to a Tahoe Z71 to a Jeep Commander 4.7, 4WD, 3.73 gear. I installed a RC 2.5" lift, Monroe Load Leveler Rear Shocks (extra 1 inch lift), 2015 Rubicon Wheels, 255/75/17 BFG KM. Commanders are basically a Grand Cherokee with a different body.
I have been very impressed with...