Jeep J8 and Wrangler JK

Heavy Duty Dynatrac™ Axle Upgrades for Jeep J8 and Wrangler JK

Jeep J8 military and armored vehicles provide forces and government officials with safety and mobility. The worst possible situation is a drivetrain failure that immobilizes the vehicle and makes it a target for hostility. Even armored vehicles can only withstand limited exposure time to serious threats. Dynatrac specializes in drivetrain durability solutions that are battle proven, and cost effective to deploy. Dynatrac solutions will also reduce sustainment costs over the life of your defense program.

Dynatrac ProRock 44™ Front Axle

  • The ProRock 44 is 100% Made in the USA
  • Dynatrac ProRock 44 provides over twice the bending strength of a factory J8 housing
  • Dynatrac ProRock 44 is equipped with 77mm OD x 13mm wall axle tubes compared to the factory J8 front axle which only has 64mm x 8mm wall axle tubing
  • The Dynatrac ProRock 44 has a patented high-ground-clearance design which increases its ground clearance by 11mm, and reduces the frontal obstacle impact area by almost 30%
  • The ProRock 44 end forging is made from US steel and is much stronger than stock – a critical upgrade for larger tires and heavy armored vehicle weights
  • ProRock 44 end forging maintain proper wheel camber even under severe use
  • The ProRock 44 readily accepts off-the-shelf J8 gears, shafts, wheel ends, brakes and other internal parts for low program sustainment costs
  • The ProRock 44 is equipped with heavy-duty 5mm suspension brackets compared to the 3mm factory J8 brackets
  • It is also equipped with heavy-duty cast, helical coil seats, and high-durability sway-bar tabs
  • The ProRock 44 is equipped with patented Dynatrac ProSteer, high-durability ball joint assemblies
  • The ProRock 44 includes a highly impact resistant nodular differential cover
https://youtu.be/_pjVPUnRfMg

Dynatrac Rear Axle Solutions

ProFloat XD60™

The Dynatrac ProFloat XD60™ is a proprietary system of axleshaft, housing and bearing technology that virtually eliminates axle-flange bending, even with heavy vehicle loads. The ProFloat XD60 is available as a a direct bolt-in for the Jeep J8 and 2007-2017 Jeep Wrangler (JK).

  • The ProFloat XD60 rear axle features weight capacity of up to 3,400 kg
  • The Dynatrac ProRock XD60 has a patented high ground clearance design which increases its ground clearance by 14mm, and reduces the obstacle impact area by almost 30%
  • 100% Made in the USA
  • Available with selectable locking and Trac-loc limited-slip differential options
  • The Dynatrac ProFloat XD60 is equipped with 95mm x 13mm wall axle tubes compared to the factory J8 rear axle which only has 88mm x 9.5mm wall axle tubing
  • Uses high pinion, 258mm gears for additional strength and ground clearance advantages
  • Includes a highly impact resistant nodular differential cover
  • Equipped with high strength, 38mm, 35-spline, alloy steel, proprietary axle shafts
  • Readily accept factory J8 rear brake assemblies and parking brake
  • Fully compatible with JK and J8 ABS/ESP wheel sensors
  • The width of the ProFloat XD60 axle is increased to 1,746mm (68.75 inches)
  • Equipped with either J8 or Wrangler JK wheel bolt pattern and wheel-stud thread
  • The axle is supplied with a compatible JK/J8 driveshaft companion flange
https://youtu.be/NsYKo5MbBaY

ProRock XD60® Full-Float

  • The ProRock XD60 rear axle features much stronger full-floating wheel ends for additional weight capacity, up to 3,400 kg
  • The Dynatrac ProRock XD60 has a patented high ground clearance design which increases its ground clearance by 14mm, and reduces the frontal obstacle impact area by almost 30%
  • 100% Made in the USA
  • Available with selectable locking and Trac-loc limited-slip differential options
  • The Dynatrac ProRock XD60 is equipped with 95mm x 13mm wall axle tubes compared to the factory J8 rear axle which only has 88mm x 9.5mm wall axle tubing
  • Uses high pinion, 258mm gears for additional ground clearance advantages
  • Includes a highly impact resistant nodular differential cover
  • Equipped with high strength, 38mm, 35-spline, alloy steel, full-floating, axle shafts
  • Readily accept factory J8 rear brake assemblies and parking brake
  • Fully compatible with JK and J8 ABS/ESP wheel sensors
  • The width of the ProRock XD60 axle is increased to 1746mm (68.75 inches)
  • Equipped with 8 on 6.5-inch BC wheel pattern and 9/16-18 wheel studs, stock J8 thread
  • The axle is supplied with a compatible JK/J8 driveshaft companion flange