Purpose Built Tactical Vehicles

Heavy Duty Dynatrac™ Axles for Purpose Built Tactical Vehicles

With our in-house engineering expertise and decades of rear-world off-road and defense-vehicle experience, Dynatrac is an ideal partner for developing chassis, suspension, drivetrain and brake solutions for your purpose built tactical vehicle programs.

Dynatrac IFS and IRS Programs

Dynatrac is equipped to provide legendary durability and strength in independent front and rear suspension applications. We’ve developed the ProRock XD60-IFS™ and ProRock 80-IRS™ as extreme, durable differentials that can be used in demanding independent suspension systems. We have also developed suspensions systems for several vehicle programs, incorporating performance and stable suspensions system with ProRock IFS and IRS axle assemblies.

ProRock XD60-IFS™

The ProRock XD60-IFS™ will take the abuse of heavy loads in addition to high-traction, large diameter off-road tires, giving operators confidence in the equipment, allowing them to focus on their mission.

More than just legendary Dynatrac strength and durability, the XD60-IFS™ is also narrower than the competing axles at just 13.7 inches from flange-to-flange. This improves half-shaft angles and improves suspension travel. The patented Dynatrac ProRock™ design also delivers best-in-class ground clearance and reduces the overall frontal impact area.

ProRock XD60-IFS™ Design Specs and Highlights:

  • High-Strength Cast Nodular Iron Center section
  • Features Exclusive Larger Carrier and Pinion Bearings for Increased Strength
  • Utilizes 10.1-inch diameter, Reverse Cut High-Pinion Ring Gear
  • Connection Points for Air and Electric Locker Differentials Cast into Unit
  • Mounting Points for Housing are Integrated into Casting
  • Structurally-Integrated Differential Cover with Special Rock Ribs for Protection
  • Differential Cover Lower Bolts 7/16-inch Diameter and Deeply Embedded for Protection
  • Made in the USA

The Dynatrac ProRock XD60-IFS™ comes with 40-spline 4340 inner axleshafts and either 934 or series 30 flanges. The ProRock XD60-IFS™ accepts a full range of differentials, including air lockers and electric lockers. Gear ratios are available from 3.54:1 to 5.38:1.

ProRock 80-IFS/IRS™

The Dynatrac ProRock 80-IFS/IRS™ provides optimum strength and minimum size in independent suspension systems for vehicles up to 11,000 (4,990 Kg) GAWR. The ProRock 80-IFS/IRS™ axle features optimum ground clearance, minimum impact area and uses readily available bearings and seals for easy servicing.

The patented Dynatrac ProRock® design provides unbeatable ground clearance and reduces the frontal impact area by 30-precent. The smooth bottom of the ProRock XD80-IFS/IRS™ is engineered to take direct impacts from rocks without the need of a skidplate under the axle. This reduces overall vehicle weight and cost, while providing even more ground clearance.

All Dynatrac drivetrain systems are engineered to protect against field failures. These axles are cost-effective and designed to accept readily available common service parts to make service around the world easy and cost-effective.

ProRock 80-IFS/IRS™ Design Specs and Highlights

  • Highest Strength-to-Weight Ratio in Its Class
  • 35- or 40-Spline Chromoly Axleshafts
  • High-Strength Series 30 or Series 21 (934) CV Joints
  • 11.25-Inch (386 mm) Ring Gear
  • Structurally-Integrated Nodular-Iron Differential Cover Engineered to Withstand Heavy Impacts
  • Aluminum Differential Cover is Available for Reduced-Weight Vehicle Programs
  • Multiple Driveshaft Flanges are Available
  • Low-Pinion Design
  • Suitable for Vehicles up to 11,000 Lb. (4,990 kg) GAWR
  • Made in the USA

Dynatrac ProRock 44™ Front Axle

  • Heavy-duty 3.125-inch diameter axle tubes with .500-inch wall thickness
  • Eliminates the front-axle disconnect (FAD) and includes new chromoly inner axleshafts
  • The strongest end forgings, made by Dynatrac in the USA
  • 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 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
  • 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

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 2018-current Jeep Wrangler JL and 2019-current Jeep Gladiator JT.

  • 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
  • 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 COTS rear brake assemblies and parking brake
  • Fully compatible with ABS/ESP wheel sensors
  • Equipped with either 5 on 5.5 wheel bolt pattern
  • The axle is supplied with a compatible driveshaft companion flange

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
  • 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 COTS rear brake assemblies and parking brake
  • Fully compatible with ABS/ESP wheel sensors
  • Equipped with 8 on 6.5-inch BC wheel pattern and 9/16-18 wheel studs
  • The axle is supplied with a compatible driveshaft companion flange