MW 40-spline allows the largest and strongest axle available for the Dana 60. Due to the large spline, 58505 wheel bearings and proper housing ends are required For use with 4 series gears, (4.56 to 7.17 Dana Spicer Manufactured gears) (4.10 to 7.17 other manufacturers' gears). Manufactured from through hardened 4140 high strength steel. 16.5 lbs

Installation - Service Instructions can be found on Service Bulletin #0046.

*Dana 60™ is a trademark of Dana Limited. MW products are not manufactured or authorized by Dana.