Dana® Ultimate 44 Axles


JK Jeeps

Built for the Jeep® Wrangler® JK

Engineered for all Jeep® Wrangler ® JKs, 2007 to current, the Ultimate Dana 44™ axle is a direct bolt-in solution and requires you to reuse your stock wheel ends. Featuring a number of upgrades for added on-trail durability, plus added strength wherever you take your vehicle, the Ultimate Dana 44™ axle is built to meet the demands of serious off-road enthusiasts.

The Dana Ultimate 44 Axles are the perfect upgrade for your JK Jeep conversion, allowing you to take full advantage of all that extra power.


Axle Ratio:

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The Ultimate Dana 44™ Front Axles for the Jeep JK

From the Spicer® nickel chromoly steel axle shafts to the Spicer® performance differential cover to the SPL® 1350 axle shaft universal joints, the Ultimate Dana 44™ front axle is built to deliver for people who rely on their Jeep® Wrangler® JK. In addition, the axle is equipped with the following features and benefits.

  • Thicker tubes
    • 5/16" thick for improved strength, rigidity and durability
  • Redesigned and thicker brackets
    • 1⁄4" steel to resist bending and endure the off-road environment
    • Works with most lift kits 
  • Spicer® chromoly axle shafts for optimal strength and performance
  • Spicer Life Series® (SPL®) 1350 u-joints with triple lip seals and full-circle clips for ultimate protection and retention
  • Performance differential cover and Spicer® performance gasket
    • Providing enhanced sealing and protection from off-road hazards 
  • Selectable electronic locking differential
    • Harness sold separately
  • Genuine Spicer® gearing
    • Precision design and manufacturing processes provide ultimate gear mating for optimal strength, life, and quiet performance
    • Expanded aftermarket gear ratios: 3.73, 4.10, 4.56, 4.88, 5.13, and 5.38 
  • Pinion angle optimized for lifting vehicles
  • Increased gross axle weight rating (GAWR) allows for the added weight of suspension upgrades, bumpers, winches and larger tires (up through 37" tires)
  • Improved caster angle for lifted Jeeps®
    • Reduces "bump steer"
  • Dana recommends using military tested and approved 75W-140 synthetic lube (not included)
    • Provides premium performance and relability in the toughest environments