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Ultimate Dana 44™ Crate Axle, Fits 2007-2018 Jeep Wrangler JK - Front Axle - 4.88 Gear Ratio, Electronic Locking Differential - 10010521

Axle Assembly

Ultimate Dana 44 Crate Axle - Jeep Wrangler JK - Front 4.88 ELD Drive Axle Assembly - 10010521
Axle ModelDANA 44
Gear Ratio4.88
Traction DeviceElectronic Locker
Brakes IncludedN
Axle Shaft U Joint Series1350
Axle Shaft MaterialChromoly
Availability: Ready to Ship
Pricing: $5,669.99


Engineered for all 2007 to 2018 Jeep Wrangler JKs, Ultimate Dana 44™ front axles feature a number of upgrades designed for added durability on the trail. Get a direct bolt-in solution that delivers increased strength wherever you take your vehicle. Dana 44 Infographic

Dana 44 Features

  • “Bolt in” front axle for the Jeep® Wrangler JK
  • Made with thick 1/4-inch steel brackets to resist bending and endure off-road environments
  • Designed to provide optimal performance for lifted vehicles with larger tires
  • Increased gross axle weight rating (GAWR) allows for the added weight of suspension upgrades, bumpers, winches and larger tires
  • Available in 3.73, 4.10, 4.56, 4.88, 5.13 and 5.38 axle ratios
  • Reuse factory knuckles, brakes and wheel hub bearings
  • Electric differential locker
  • 2.5” tube diameter 5/16” wall thickness
  • Heavy-duty nodular iron differential cover
  • Pinion yoke same as stock JK
  • Built with genuine Spicer axle components

Dana 44 Installation Tips

  • Axle is shipped without oil; fill with 2 quarts of 75W140
  • First oil fill to the upper fill plug; service oil fill to lower fill plug
  • Wheel speed sensor wires should be secured out of the way of brake-end suspension components
  • Production drag link and tie rod ends may be reused
  • Longer bolts may be required for some suspension points – use grade 10.9
  • Suspension torques from service manual should be followed
  • Front: mount stabilizer bar end links outboard of bracket
  • Driveshafts from stock JK can be used depending on suspension lift height
  • Toe-in specifications from service manual should be followed
  • Electric locker voltage/current required (0-18V, 8A max continuous.)
  • New wheel hub bearing bolts and axle shaft nuts included
  • See service manual for general axle installation information
  • Dana Switch Harness Kit (10021771) is available to control the electric locker


Year RangeMakeModelSubmodelNotes
2007 - 2017JeepWrangler--Front,with 4.88 Gear Ratio,with E-Locker,with Ultimate Dana 44 Axle
2018 - 2018JeepWrangler JK--Front,with 4.88 Gear Ratio,with E-Locker,with Ultimate Dana 44 Axle


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