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Complete Dynatrac ProRock 60 High-Pinion Semi-Float Rear Axle Assembly - 2007-2018 Jeep JK - Extra Width

Quick Overview

This specially-configured ProRock 60® semi-float rear axle for the 2007-2018 Jeep JK gives you legendary Dynatrac strength and durability with the lowest price of all time! This assembled axle with extra width (68.5 inches), comes with a 35-spline ARB Air Locker and 5.38:1 gears.

Availability: In stock



The Dynatrac ProRock 60® was the first of its kind when it was unveiled in 2002. Today, it’s the off-road performance standard to which all other Dana 60 based axles are compared. And now you can have the legendary strength and durability of a Dynatrac ProRock 60 for your 2007-2018 Jeep JK at the lowest price ever offered with this specially configured, completely assembled semi-float rear axle.

Here are the details of this specific axle configuration:

  • Custom Machined Dynatrac ProRock 60 High-Ground Clearance, High-Pinion Semi-Float Rear Axle

  • Heavy-Duty Nodular-Iron ProRock 60 Housing

  • Superior Lightweight Semi-Float Axle Design

  • Standard Lifted JK Housing Geometry and Pinion Angle

  • 68.5-inch Axle Width

  • Heavy-Duty 3.125-inch Diameter, 0.313-inch Wall Draw-Over-Mandrel (DOM) Axle Tubing

  • Dynatrac 3/16-inch JK Rear Coil Spring Suspension Bracket Assembly Kit, Installed

  • Pro Rock 60 Nodular Iron Diff Cover, Installed

  • Dynatrac Heavy-Duty Raised Track Bar (not shown in photo)

  • Dynatrac Pro 60 Dual Sump/High Volume (DSHV) High Pinion Oil Seal Modification, Installed

  • ARB Air Locker, 35 Spline, Installed, with ARB Kit

  • Ring & Pinion, 9.75-inch Diameter, Reverse-cut, 5.38 Ratio, Installed

  • Dynatrac JK Pro Series 60, 35-Spline 1.5-inch Rear Axleshaft Assembly Kit, Installed

  • New Billet Tone Rings Already Installed on the Axleshafts

  • Dynatrac Billet Axleshaft Retainers with Studs - Always Insist on Dynatrac Retainers. Our Studs Will not Strip and Spin Like Other Retainers

  • Axleshafts are Drilled for both 5 on 5 and 5 on 5 1/2 inch Wheel Bolt Pattern; Comes with Studs Installed in 5 on 5 1/2 Bolt Pattern

  • Large Tapered Roller Axle Bearings 

  • Dynatrac JK ABS/ESP Sensor Mount, Installed

  • Axle is Detailed and Painted Dynatrac Gloss Black

  • 100% Made in the USA

  • Exclusive Dynatrac 1-year No-Fault, Unlimited-Mileage Warranty

The axle comes assembled. All you need to do is bolt it under your Jeep JK and re-use your stock rear disc brakes. Or you can upgrade to the Dynatrac ProGrip™ Brake System for a serious improvement in stopping power.

This is a specially priced ProRock 60 axle configuration. If you are interested in other options, please call us at 714-421-4314 for a custom estimate.

NOTE: Photo shows brake rotors and brake backing plates which are not included. Customer to re-use factory JK brake rotors and backing plates. Axle includes raised track bar mount, not shown in photo.

WARNING: Cancer and Reproductive Harm –


Photo shows brake rotors and brake backing plates which are not included. Customer to re-use factory JK brake rotors and backing plates.