Description
Dynatrac
Elite ProRock 80™ Rear Axle Roller for Jeep Wrangler JK
Dynatrac
The Dynatrac Elite™ ProRock 80 Rear Axle Roller is engineered for Jeep Wrangler JK owners who demand the highest level of drivetrain strength, durability, and performance for extreme off-road use. Designed to support tire sizes from 37 to 44 inches, this axle is built for experienced drivers tackling the most technical terrain and hardest trails without compromise.
This is a roller axle assembly, built spindle-to-spindle, allowing you to configure shafts, gearing, lockers, and final options to match your exact build needs.
Key Features:
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ProRock 80™ nodular-iron, full-float rear axle housing engineered for extreme-duty applications
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Best-in-class ProRock® ground clearance for 10.25-inch and larger ring gear diameters
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Industry-leading 4-inch diameter Dynatrac proprietary variable wall thickness chromoly axle tubes
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40-spline full-floating wheel ends with heat-treated 4140 fixed spindles
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High-capacity wheel bearings with Dynatrac 12-bolt flanged floater hubs and O-ring seals
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Designed for use with U.S.-made, heat-treated 40-spline 4340 alloy-steel axle shafts
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Rock-proof nodular-iron Dynatrac differential cover included
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CNC laser-cut, heavy-duty suspension brackets professionally welded and installed
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Multiple-position track bar bracket for long-travel suspension tuning
Base Assembly Includes:
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Dynatrac ProRock 80™ rear axle roller assembly with differential cover
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Welded 1/4-inch plate steel mounting brackets, bolt-in ready
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4-inch diameter variable wall thickness axle tubes
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Dynatrac 40-spline spindles
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Built spindle-to-spindle with wheel hubs and brakes installed
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Axle shafts not included unless specified during configuration
Brake Package:
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One-ton OE-style brake system
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Single-piston calipers
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Brake pads
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Two 13.88-inch rotors drilled for 8×6.5 bolt pattern
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Brake backing plates with integrated parking brake shoes
Fitment:
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2007–2018 Jeep Wrangler JK
This axle is ideal for high-horsepower, heavy-duty Jeep JK builds where maximum strength, reliability, and ground clearance are critical. Built to order, it allows full customization to meet the demands of extreme off-road performance.
SKU: DT PR-80-rar-jjK
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