The rear Currie Rock Jock 60 has 5.38 gears and an ARB Air Locker. They also feature Currie's disc-brake kit with integral E-brake. The reverse-cut, high-pinion design gets the driveshaft up and improves driveline angles, something not quite as critical on the long LJ. The Teraflex Pro LCG has triangulated upper rear control arms, so no rear track bar is needed. We would like to see the exhaust exiting from the rear or side of the Jeep rather than this, but Burnsville likes it and it's their Jeep. The muffler doesn't work very hard to quiet the V-8.