The Dynatrac Elite™ ProRock XD60®/80 Axle-Set stands alone among all other 4x4 drivetrain options. It is the very best 4WD drivetrain technology that money can buy. You simply cannot find a stronger axle solution than the Elite™ ProRock Axle-Set. The U.S.-made bolt-in unit is lightweight and has more ground clearance than its competitors.

The Elite™ ProRock XD60®/80 Axle Set is for Jeep Wrangler JK owners who will not settle for anything less than the very best drivetrain durability, quality and extreme performance for running tires in diameters from 37- to 44-inches. If you are a highly experienced and skilled off-road driver who regularly engages in very technical off-roading with their friends and family, you enjoy taking on the hardest trails and the most difficult and challenging obstacles, this is the Axle Set for you.

The Elite™ ProRock XD60®/80 Axle Set is designed specifically for large JK builds with very large tires, high-performance engine swaps, superchargers, high-torque diesel engine swaps, deep gear reduction and transfer case ratios numerically higher than 4:1. 

What You Get:

ProRock XD60^® Front Axle

• Dynatrac exclusive patented ProRock® nodular-iron, high-pinion ProRock XD60® centersection with bearing bores to handle oversize pinion and carrier bearings for elite housing rigidity.
• More ground clearance than any other axle housing in its class.
• 3.75-inch diameter, variable wall thickness tubing has the highest strength-to-weight ratio compared to any other light-truck axle on the market.
• Dynatrac exclusive Dual-Sump High Volume™ (DSHV) oiling system to ensure the outer pinion bearing is never without lubrication.
• Dynatrac-exclusive U.S.-made forged, double-heat-treated 1550 35-spline axleshaft assemblies. These are the best shafts in the industry and are capable of up to 50-degree turning angles. 
• Our new 1550LT® knuckles are loaded with our best set of Dynatrac HD BallJoints™ yet. These are the last balljoints you’ll ever need, and are designed with larger stems and bodies for long life and high durability with big tires.
• Forged 4140, heat-treated, fixed spindles and serviceable wheel bearings support tires up to 44 inches.
• No other 4x4 front axle offers the ease of steering, low scrub radius, effective Ackermann angle and high steering linkage positioning.
• Includes Dynatrac high capacity 13.25-inch brake upgrade with new dual-piston front calipers and vented rotors.
• Includes our latest integrated track bar and ram-assist steering mounting package.
• Includes new HD tie rod, integral steering arm, new Dynatrac DHD™ drag-link sleeve, control arm bushings, CNC laser-cut HD suspension brackets, all professionally welded and installed.
• Includes DynaLoc™ locking hubs. DynaLoc hubs are over 3 times stronger than all other locking hubs on the market.
• Comes with an ARB Air Locker and your choice of 4.88, 5.13 or 5.38 gears.

NOTE: Comes with 35-spline shafts, hubs, locker. 

ProRock 80™ Full-Float Rear Axle

• Dynatrac ProRock 80™ nodular-iron, standard-cut, high-rigidity housing promotes ring-and-pinion gear durability for the biggest JK and 4x4 builds.
• Dynatrac patented best-in-class ProRock® ground clearance. The ProRock 80™ has better ground clearance than any other axle housing made for 10.25-inch-and-larger ring-gear diameters.
• Industry-leading 4-inch-diameter, variable wall thickness, lightweight, chromoly tubing that has the highest strength-to-weight ratio when compared to any other light-truck axle on the market.
• Dynatrac 40-spline, full-floating wheel ends with heat-treated 4140 fixed spindles, high-capacity wheel bearings and Dynatrac’s exclusive 12-bolt flanged floater wheel hubs with O-ring seals.
• All ProRock 80s are equipped with Dynatrac U.S.-made forged, heat-treated, 40-spline, full-floating 4340 alloy-steel shafts.
• Includes Dynatrac 13.88-inch brake upgrade with single-piston calipers and 8-on-6.5 wheel bolt pattern.
• Includes HD mechanical parking brake with adapters for stock JK parking-brake cable attachment.
• Rock-proof nodular-iron Dynatrac diff cover included.
• All HD suspension brackets are CNC laser-cut and professionally welded and installed, including a multiple-position track-bar bracket for long-travel suspension tuning.
• Comes with an ARB Air Locker and your choice of 4.88, 5.13 or 5.38 gears.