Wavetrac Differential BMW early E9x 335i all E39 540i
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Fitment – Bolted Ring Gear BMW 215K Axle
- E9X 335i M/T (build date before 03/2007)
- E9X 335i A/T (build date before 03/2007)
- All E39 540i
- E52 Z8
Product Overview
The BMW E39 540i Wavetrac® Differential is a state-of-the-art helical gear unit designed, developed, and manufactured in the USA by Autotech Driveline. It is the only torque biasing differential on the market featuring patented technology that actively mitigates wheelspin during unloaded wheel conditions.
When axle load drops to zero, the Wavetrac® cam mechanism generates internal load, maintaining drive to the gripping wheel—unlike conventional torque biasing differentials that behave like open diffs in such scenarios.
Each unit is built with ultra-strong 9310 alloy steel gears, enclosed in case-hardened steel bodies and secured with ARP® fasteners. All Wavetrac® differentials include a transferable Limited Lifetime Warranty.