Axle Shaft Length & Bolt Circle Measurement

Rear Axle Measurements

Axle Shaft Length, Spline Count, Bolt Circles and more…

Measuring axle shaft length correctly is a critical step in replacing or upgrading axle shafts. Whether you are looking for a rare or hard-to-find axle, have a custom width housing or simply need a stock replacement for a daily driver, determining correct measurements and spline counts can save time and money.

Nearly all of our Axle shaft application charts include specifications for axle shaft length spline count and lug count.(Find the application listings in the “Axles” tab in the top menu) If you are unsure about which axle shaft will fit your particular application, consult your parts specialist or contact Sierra Gear & Axle directly at (800)792-2714 for assistance.

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How to Measure Axle Shafts - Axle shaft length and bolt circles

Differential Repair and Upgrade Parts
Our Technical and Sales Support experts are available to help Monday thru Friday from 8am to 5pm PST

(800) 792-2714