Chromoly Rear Axles

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Yukon 4340 Rear Chromoly AxlesYukon Axle Trimming Procedure

We are now carrying Yukon's new Heavy Duty 4340 Chromoly Rear Axle Shafts! These axle shafts are manufactured with a two-stage annealing process for maximum strength and feature 30% stronger cold rolled splines.

The result is a full warranty against axle breakage for as long as you own your rig.

Applications include all 1986-2004 rear Pickup/4Runner/Tacoma rear ends, with or without ABS. Sorry, not compatible with T100 or Tundra rear ends. This is possible thanks to Yukon's cut-to-length design. Yukon has used this design for many years on domestic applications and has finally incorporated it for Toyota's! Simply measure your old axles, cut the new axle to length using a chop saw, and then bevel the splines with a bench grinder. This process does not affect the axle's performance because the cut is beyond the differential side gear where no contact is made.

Yukon Heavy Duty 4340 cut-to-length axles are so reliable they are used in large diesel drag racing applications! Put this same performance to work for your Rock Crawling needs today!

Tip: Before you press your bearing collar on, ensure there are no sharp edges along the c-clip groove.

Please note: 2000-2004 applications require a bearing case to be swapped over from a 1979-1999 rear axle. The Bearing Case is the component shown here.

Cutting shields removed in the above image for illustration only. Always use safety equipment and eye protection!

Sold individually. Please order quantity (2) for one truck.

Proposition 65 Warning for California Consumers

WARNING: Products we sell can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to