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Currie Enterprises RockJock 70 Rear Crate Axle Assembly for 18-20 Jeep Wrangler JL & Gladiator JT

Be prepared for the competition with the RockJock 70 Rear Axle Assembly in your Jeep Wrangler JL. Engineered to handle the most extreme situations and off-road conditions world wide. Offering 40 spline 4340 chromoly axles and 70 gears with 9310 heat treated alloy for ultimate strength and durability. A serious axle for a serious Jeep JL owner. Knock out the competition with confidence.

RockJock 70 Rear Crate Axle Assembly All-Inclusive Specifications:

  • Gear Set - Competition Grade 9310 Gears w/ 35 spline pinion (custom heat treated)
  • Ring Gear Load Bolt - 3/4" 16 RH thread with jam nut (eliminates deflection under load)
  • Yoke Size - 1350 U-joint
  • Axle Tubes - 3.5" diameter / .375 wall DOM tubing
  • Axles - Full Floating 40 spline count (1.7" diam) / 4340 Chromoly
  • Floating Hub/Spindle - JK tone rings w/ 40 spline drive flanges (for ABS & ESP) / 2.5" 4140 Chromoly spindle
  • Brakes - 12" Vented Rotors / OEM JK rear calipers (HD 3/16" Mounting brackets with multiple
  • Geometry - 5 degrees pinion angle (optimal for 4" lift)
  • Width - 70" wide (4.6 inches wider than stock)
  • Bolt Pattern Options - 6x5.5 (1/2" studs) or 8x6.5 (9/16" studs)
  • Paint Finish - Black Satin PowderCoat
  • Truck Freight Weight and Dims - 380 lbs / 82"x26"x21"

High Ground Clearance: Extreme Reinforced axle assembly with radius bottom center section allowing your Jeep Wrangler JL to slide over obstacles without getting caught up. A replaceable AR400 hardened steel skid plate helps protect the housing from trail damage. Offering the highest ground clearance of any 60 in the market... Boom.

Nodular Iron Diff Cover: Finished in a bold textured red powdercoat protecting the inner workings of the axle assembly. A build in dipstick on the fill plug provides quick access to check the gear oil level (85W-140).

Competition Rock Jock Full Floating Design: This premium design isolates the axles from the stress of vehicle weight and side loads for optimal strength. Offering a high flow oil system that bearings lubed and cool with superior circulation. Keeping all the components properly lubricated for a long lasting dependable assembly. The 3.5" axle tube is 3 times stronger than the factory Dana 44 tube.

Installation Notes
Installation Difficulty:
Level 3Advanced
Installation Time: 4-6 hours
Parts Included

Complete Axle Assembly: Ready to bolt on and fully assembled crate axle

  • RockJock 70 Rear Axle Housing
2 Year Limited Warranty
  • Jeep Wrangler 2-Door (JL)

  • 2020 Jeep Wrangler 2-Door (JL)
  • 2019 Jeep Wrangler 2-Door (JL)
  • 2018 Jeep Wrangler 2-Door (JL)
  • Jeep Wrangler Unlimited 4-Door (JL)

  • 2020 Jeep Wrangler Unlimited 4-Door (JL)
  • 2019 Jeep Wrangler Unlimited 4-Door (JL)
  • 2018 Jeep Wrangler Unlimited 4-Door (JL)
  • Jeep Gladiator (JT)

  • 2020 Jeep Gladiator (JT)

Currie Enterprises RockJock 70 Rear Crate Axle Assembly Options

Part NumberCatalog #Gear RatioLockerBolt PatternPrice