2012 JK 4dr Sport, Full Traction 4 inch Long Arm Kit, Bilstien 5100, JE Reel Driveshafts, Superior Chromoly Axles, Superior 5:13 gears, Detroit Locker Front, Eaton Tru Trac Rear, Synergy gusset kit, 37x12.50 Nitto Trail Grapplers, 17 inch XD Addicts, Insuliners (one of the best investments I made) Work completed by Roger Nelson at River Jeep Eng. Blythe CA.