The '07 JK of Jim McGean rests on a Dynatrac ProRock 44 front axle with an electric Rubicon Tru-Loc and 5.38 gears. Out back a Dynatrac ProRock 60 is stuffed with an Eaton Detroit Locker and like gears. All this is spun by the 3.8L V-6, an auto tranny, and a swapped-in Rubicon Rock-Trac T-case. A Mopar long-arm lift kit clears 37x12.50R17 BFG Mud Terrain KM2 tires cinched to 17x8.5 Walker Evans beadlocks.