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Dynatrac™ introduces the next step in its revolutionary, patented ProRock™ series of off-road axles with the all-new ProRock XD60™. The Dynatrac engineering team went back to the drawing board to find ways to increase the strength and durability beyond the patented ProRock 60® which is already the industry standard for upgrades beyond the Dana 60.
The all-new ProRock XD60 axle is now available in both front and rear applications for the 2007 to current Jeep Wrangler (JK). It will soon also be availble as a custom-order axle, and for other applications.
The new Dynatrac ProRock XD60 starts with a center section cast from high-strength nodular iron. The patented design provides the best ground clearance in the industry. The axle was designed to hold a larger differential and 10.1-inch ring gear, providing a 16 percent strength increase over 9.75-inch Dana 60 gears. Using CAD/FEA and advanced engineering tools, Dynatrac designed the new center section for increased rigidity, increasing the stability of critical tolerances during high stress for better durability. It is also available with larger carrier and pinion bearings for even more strength. The internal Dynatrac Dual Sump High Volume (DSHV) lubrication system provides optimal oiling. All of these improvements were achieved while also making the center section 15 percent lighter. The ProRock XD60 also has optimal cast-in features for air locker and electric locker connections.
In addition to these engineering advancements in the center section and wheel ends, the Dynatrac XD60 also features an all-new differential cover designed to withstand brutal beatings in demanding off-road and racing conditions. The lower bolt heads are deeply embedded in the cover for skid protection, and the fasteners are the largest in the industry: 7/16 inch compared to conventional 3/8 inch. The rock ribs have been placed for optimal protection.
The Dynatrac ProRock XD60 is designed for 3 3/4-inch outside-diameter axle tubes with either 1/4-inch or 5/16-inch wall thickness. The 1/4-inch-thick axle tubes are 22 percent stronger than a 3 1/8-inch-diameter tube with 5/16-inch wall thickness, and they weigh the same. The 5/16-inch-thick tubes are 12 percent stronger and 18 percent lighter than 3 1/8-inch-diameter tubes with 1/2-inch wall thickness. The Dynatrac ProRock XD60 accepts a full range of differentials, including air lockers, electric lockers and limited slips. Gear ratios are available from 3.54:1 to 5.38:1.