Jeep TJ Axle Kit - Front - Yukon Gear & Axle - 4340 Chromoly + Grizzly Locker - `84-`06 is a complete front Dana 30 axle kit built for drivers who want a robust, OE-replacement level axle package with an automatic locker. It’s designed for Jeep TJ applications and compatible Dana 30-equipped XJ, YJ and ZJ vehicles.

This Yukon kit uses high-tensile 4340 chromoly axles with cold roll formed splines and advanced induction heat treating to provide reliable strength where it matters most. The package includes Yukon Grizzly Locker (fits 3.73 gear ratios and up), a vacuum disconnect block-off kit, carrier bearings and races, and two Spicer 1310 U-joints and associated hardware. The kit supplies 30-spline inner axles and 27-spline outer axles for direct fitment into Dana 30 front differentials, offering a straightforward upgrade path for trail-focused Jeeps.

Features

• High-tensile 4340 chromoly inner and outer axle shafts
• Cold roll formed splines and induction heat treating for durability
• Yukon Grizzly Locker (compatible with 3.73 & up gear ratios)
• Includes two Spicer 1310 U-joints, carrier bearings & races
• Vacuum disconnect block-off kit and necessary hardware
• Fits Dana 30 front differential on TJ (also fits XJ, YJ, ZJ with Dana 30)

If you have questions about fitment, installation, or compatibility with your axle gears, call us directly — we’re happy to help. We have two service locations offering installation and customization: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) for assistance or to schedule installation. If you’re considering purchasing multiple items, contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov