Products specifications
Vehicle Fitment 2007 thru 2018 Jeep Wrangler JK and JKU
Extreme 60 ___________________________________________________________________________________
Housing Extreme 60 Nodular Iron High-Clearance Center Section with Rotated Cover, Ring Gear Load Bolt and Integrated Skid Plate
Bearing Caps Increased cross section nodular iron caps secured with ARP® fasteners
Pinion Oiling High volume flow-thru recirculating oil system
Gear Set Dana 60™ reverse rotation thick gear sets (compatible with super 60 reverse cut gears)
Differential Carrier Only high speed differential carriers (designed for low numerical gears) are used, enabling the use of stronger thick ring gears for all gear ratios. Carrier outside diameter is turned down to 8.30 inches for load bolt clearance
Ring Gear Load Bolt Eliminates ring gear deflection under heavy load (3/4"-16 right hand thread with Jam nut)
Pinion Yoke 1350 u-joint
Skid Plate AR400 hardened steel skid plate
Differential Cover Currie nodular-iron cover, Red
Axle Tubes 3 1/2 inch diameter, .375 wall DOM tube
Suspension Brackets Heavy gauge 3/16 steel mounting brackets
Width 70-inches wide (between wheel mounting surfaces)
Wheel Bolt Pattern 8-lug (8 x 6.5 in.) with 9/16 studs
Finish Black satin powder coat
Front Extreme 60 ___________________________________________________________________________________
Axles Currie Performance 35-spline (1.5 in. diameter) 4340 Chromoly inner and outer axle shafts with 1480 u-joints
End Forgings Currie 1-ton heavy-duty forged steel inner C’s
Steering Knuckles Currie 1-ton nodular iron steering knuckles machined and keyed for high-steer arms
Unit Bearings 1-ton unit bearings with JK tone rings installed for ABS and ESP retention
Hubs Warn Premium locking 35-spline hubs
Brake Rotors 13-inch vented rotors (over 1.1 in. larger diameter than stock, provides increased brake force) with zinc plated caliper brackets
Brake Calipers F-350 Dual-piston calipers
Tie Rod 1-ton 1.357 in. OD x .375 wall heat treated chromoly tube with forged tie rod ends
Geometry Optimized for vehicles with 3 to 4-inches of lift (5 degrees of pinion angle and 5 degrees of caster angle)
Trac Bar Mount Integrated raised track bar and ram-assist mount. Trac bar mount height set for 3 to 4 inch lift, ram-assist mount setup for PSC 8-inch travel ram
Rear Extreme 60 ___________________________________________________________________________________
Axles Currie Performance double splined full-floating (35-spline 1.5-inch diameter) 4340 heat-treated chromoly
Floater Spindle Currie Performance 2.5-inch heat-treated 4140 Chromoly spindles, supports 35 or 40-spline axles
Floater Hub Currie Performance billet full-floating hubs with 35-spline drive flanges, JK tone rings installed for ABS and ESP retention
Brake Rotors Upgraded 13.750-inch vented rotors
Brake Calipers Jeep Gladiator truck rear calipers
Parking Brake Modified JK EOM backing plate and parking brake assembly
Geometry Optimized for 4-inchs of lift with 5 degrees of pinion