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1. What are the differences between the ProRock 60® and ProRock XD60®?

The Dynatrac ProRock 60® was the first of its kind when it was unveiled in 2002. It was an all-new high-pinion casting with a patented shape that provided the best ground clearance of any 60-based axle, and, in fact, more ground clearance than a stock Dana 44! It uses a 9.75-inch-diameter ring gear and 3-1/8-inch OD, 5/16-inch-thick wall axle tubes in front applications, and 5/16-inch-thick wall tubes in rear applications. It is still the standard in off-road performance and durability that competitors try to measure up to. The Dynatrac ProRock XD60® is the next evolution in high-strength, high-clearance off-road axles. It is the strongest and lightest axle in its class. This all-new extreme-duty, high-pinion housing can use a 10.1-inch-diameter Super 60 ring gear. It features industry-leading ground clearance with its patented ProRock® design. The inner pinion and carrier bearings are larger for a 50 percent increase in load-bearing capacity. The tubes are 3-3/4-inch OD with ¼-inch-thick wall, making them lighter and stronger than the traditional ProRock 60. The XD60 cover is sealed with a reusable O-ring for easier assembly, and the cover is held in place with 7/16-inch, Grade 9 bolts. The cover and attachment method make it a structural part of the housing, increasing overall housing rigidity. You can read more and view a video about the features of the ProRock XD60 in this article: https://www.dynatrac.com/blog/dynatrac-reinvents-revolutionary-off-road-axle-design-stronger-lighter-versatile-prorock-xd60/

2. Which gear ratios fit in the ProRock 60?

The ProRock 60 housing can use thick and thin, reverse-cut, 9.75-inch-diameter Dana 60 gears in the following ratios: 4.10, 4.56, 4.88, 5.13, and 5.38. This housing will not fit 3.54 and 3.73 gear ratios. The ProRock 60 housing will not fit a 10.1-inch-diameter ring gear – but that size ring gear does fit in the ProRock XD60.

3. Which differentials fit the ProRock 60?

All common factory and aftermarket differentials will fit in the first-generation ProRock 60 housings, including: ARB Air Locker, Detroit SoftLocker, Eaton Truetrac, Eaton ELocker, spool, and Ox Locker.

4. What are the advantages of buying from a dealer?

Or buying directly from Dynatrac? We have a great group of authorized dealers, which you can view at https://www.dynatrac.com/dealers. In addition to selling Dynatrac products, many of them also install our products. The advantages of buying through a dealer include having the product installed, receiving package deals, and having a local point of contact before, during, and after the sale. In the case of the new ProRock 60 packages for the Jeep JK, our dealers can install a range of lockers and gears into the axle assembly. However, some people prefer to order products directly from the manufacturer. For those who wish to buy directly from Dynatrac, we offer the ProRock 60 assembled with an ARB Air Locker and 5.38 gears. We offer expert assembly service, and the axle is shipped complete, including oil, and is ready to bolt into your Jeep Wrangler JK. You will work directly with Dynatrac before, during, and after the sale, and the product includes our exclusive no-fault, unlimited-mileage one-year warranty.

5. How do I connect the steering?

  • Orient the drag link so that it is facing bottom up.
  • Connect the drag link to the knuckle steering arm. The tapered hole of the steering arm is a bottom-up hole. Torque the nut to 63 ft-lbs and insert the cotter pin.
  • Connect the tie rod to both knuckles. The knuckle hole-tapers are bottom-up as well. Torque both nuts to 63 ft-lbs and insert the cotter pins.
  • Cycle your vehicle suspension to ensure you have the proper clearances between the steering linkages and the axle housing.

6. Can I reuse my factory or aftermarket drag link? Can I reuse my factory or aftermarket track bar?

Yes, you can use either your factory or aftermarket drag link. It should be oriented bottom-up like factory. The ProRock 60 comes with a “high-steer” steering arm, so a drag link flip kit is not required. For the track bar, it depends, but you may be able to reuse your track bar because our kit comes with a raised track-bar bracket.

7. Will I need a new driveshaft?

Yes, you will need a new driveshaft. A stock Jeep Wrangler JK is equipped with a pinion flange. The ProRock 60 comes with a 1310 pinion yoke that takes a U-joint. As a result, the stock driveshaft is not compatible with the supplied yoke. The pinion snout of the pumpkin also extends out toward the transfer case farther than the stock 44 housing, meaning that the stock driveshaft will be too long. These are all things that a professional driveshaft shop can help you address.

8. What is the range of suspension lift that the ProRock 60 can bolt up to for the Jeep JK?

Front: 0 - 6.0” lift Rear (2-door): 0 - 4.0” lift Rear (4-door): 0 - 5.5” lift

9. What lift kits are compatible with the Dynatrac ProRock 60?

Does your lift kit bolt to all the factory JK brackets in their stock locations? If you answered yes to that question then you should have no issue with the axle being compatible.

10. What is the caster angle?

The caster angle will be in the following range: +5˚ to +7˚.

11. What if I want different options or upgrades not offered in the ProRock 60?

Then it will be a custom-order axle assembly. You will need to contact the Dynatrac Sales Team for a custom estimate: (714) 596-4461 or sales@dynatrac.com 12. Do the wheel bearings and hubs come greased? Which grease do I use? Yes, they do come greased. Dynatrac uses Timken GR224C grease.