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Fusion 44 Front Axle and Rear Axle Gear Package for Jeep JK


Part Number: FUS-E44RGP-JK
Brand: Fusion

For current axle lead times and shipping details:  See this page

Fusion 44 Front Axle

  • High strength 44 center casting with no loss of ground clearance vs. the OE casting
  • Fusion Heavy Duty Nodular iron Differential Cover
  • Large 3.0" diameter DOM axle tubes with 1/2" wall thickness
  • Massive heavy duty forged JK inner knuckle Cs
  • 65.5" Width (same as stock)
  • Heavy duty 1/4" laser cut and CNC bent brackets
  • Designed and manufactured in the USA
  • Increased Caster for a total of 10 degrees of separation compared to 6 degrees on a stock axle (e.g. 5 degrees of caster and 5 degree positive pinion angle) - custom adjustment available
  • Accepts the factory knuckles or after market high steer knuckles
  • 4340 Chromoly Axle shafts with Larger Rubicon U-Joints
  • Optional RCV Axle Shafts
  • Dana Spicer Ball Joints (other options available)
  • Choice of Gear Ratio and Locker Type
  • Commercial paint coating
  • Shipped Fully Assembled and Ready for Factory Outer Components

The Fusion Elite 44 front axle offers the same ground clearance of a factory Jeep JK Dana 44, while providing significantly more strength than the OE housing.


  • 5 year structural housing warranty
  • Lifetime axle shaft warranty
  • 5 year parts warranty on gears and lockers


Optional Next Generation Rear 40 Spline Assembly.18 months of design, engineering and testing, resulted in the industries strongest 40 spline rear assembly. The design completed rigorous FEA testing and analysis.
- Forged chromolyspindles, hubs, and axle shafts
- Forged spindles have 4x more yield strengththan 35 spline spindles
- Hubs with over 80,000 psi yield strength to match the spindles
- Tone rings integrated into the hub
- Forged 4340 chromoly 40 spline axle shafts that are 55% strongerthan 4340 35 spline axle shafts

Fusion Elite Kingpin 60 Front Axle Standard Features:

  • 72" width for ideal steering geometry and tire clearance when running 40" tires. Other width available or call for custom width.
  • High clearance center section with custom low profile fabricated differential cover
  • Genuine Made in the USA Spicer® 10.1" (256 mm) ring and pinion gear
  • 3.5" diameter x 7/16" wall axle tubes
  • Lifetime Warranty US Made Chromoly axle shafts with 1480 solid u-joints
  • Massive, race inspired Kingpin inner knuckle Cs and outer knuckles, no ball joints to wear out
  • Fully machined springless steering arm attached with 6 ARP Studs
  • Steering arm upgrades available for full hydro or virtually any application
  • 1/4" plate axle bracketry designed to be the strongest in its class
  • 8 x 6.5 bolt pattern
  • Massive 13.25" brake rotors and dual piston calipers
  • Yukon Hardcore locking hubs