Crate Axle RockJock 60 Front JK 60 Housing, 5x5.5, 1/2 Inch Studs 68.750 Inch WMS 4.88 Ratio

Product Description: 

The RockJock 60 high pinion front axle is built to the legendary Currie Standard with a long list of exclusive standard features and innovation that make it the clear choice for serious off-road adventure. Built around the Currie high clearance radius bottom center section, the RockJock 60 is designed to slide over obstacles with ease and with its thick reinforced center section, forged knuckles, large diameter tubes and full 35 spline axles, the RockJock 60 deliver superior strength for years of dependable service.
The RockJock 60 crate axle is a complete front axle assembly, reusing only the stock JK calipers from the vehicle.
Built to the legendary Currie Standard with exclusive features including:

  • Rockjock high-pinion radius bottom center section greatly improves obstacle slide-over by presenting a smooth curve rather than the sharp edge found on other 60 housings
  • Highest measured ground clearance of any 60 class axle on the market (including the integrated skid plate), guess the other guys have trouble reading a tape measure
  • Integrated AR400 hardened steel skid plate resists deformation and gouging to slide over obstacles far better than iron housings or mild steel plates
  • High volume flow-thru recirculating oil system keeps pinion bearings bathed in cool oil, reducing operating temperatures and eliminate oil starvation issues
  • Upper control arm mounts feature rebuildable Johnny Joints for improved suspension articulation
  • Currie Performance full 35-spline (1.5 inch) 4340 chromoly inner and outer axles shafts for superior end-to-end strength (offered as an additional cost option from the competition)
  • High quality and heavy duty components and brackets used throughout.


  • Center Section: RockJock 60 stage-1 nodular iron high-pinion radius bottom center section with thicker walls and webbing
  • Locker: Detroit Locker
  • Pinion Bearing: Large diameter front pinion bearing matched to rear bearing
  • Pinion Oiling: High volume flow-thru recirculating oil system
  • Gear Set: Standard reverse cut Dana 60™ (compatible with super 60 reverse cut gears)
  • Pinion Yoke: 1350 u-joint
  • Skid Plate| AR400 hardened steel
  • Differential Cover: RockJock nodular-iron cover with integrated Johnny Joint control arm mount, Red
  • Axle Tubes: 3 inch diameter, .375 wall DOM tube
  • Axles Currie Performance: 35-spline (1.5 inch diameter) 4340 chromoly inner and outer axle shafts with 1480 u-joints
  • Knuckles: RockJock heavy duty forged 1-ton inner and outer knuckles with inchhigh steer inch steering arm
  • Unit Bearings: 1 ton unit bearings with 5 on 5 1/2 inch bolt pattern, 1/2 inch wheel studs, JK tone rings installed for ABS and ESP retention
  • Hubs: Warn Premium 35-spline locking hubs
  • Brake Rotor: 13.250 inch vented rotors (over 1 inch larger diameter than stock JK, provides increased brake force), with zinc plated caliper brackets
  • Brake Calipers: Calipers not included, designed to reuse the stock JK front calipers
  • Tie Rod Currectlync: 1 3/8 inch diameter, .250 wall heat treated chromoly tube with 7/8 inch 1-ton tie rod ends
  • Suspension Brackets: Heavy gauge 3/16 inch steel mounting brackets with multiple mounting locations that enable the suspension geometry to be tuned
  • Control Arm Mounts: Johnny Joints installed with 1/2 inch greasable bolt
  • Geometry: Optimized for 4 inch lift kits with 5 degrees of pinion angle to reduce driveshaft angle and 5 degrees of caster for improved steering
  • Width: 68.750 inch wide (between wheel mounting surfaces), enables increased turning angle with large tires
  • Wheel Bolt Pattern: 5 on 5 1/2 with 1/2 inch wheel studs