So I went from a basically completely rebuild Fj60 (including the drive train) to a 2015 Jeep JK 4 door which I have own 3 years.
My Jeep has the hard top and I have not taken it off. Also 3.6L, 3.73 gears LSD, 6 speed manual with 33" tires, AEV 2.5" lift, AEV front bumper, HD rear bumper...