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WAV 56.309.178WK

Wavetrac 9" 35T Differential | 75-86 Ford F-150 / 75-83 Ford F-100 (56.309.178WK)

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Ford Differenrial by Wavetrac

Wavetrac diffs are state-of-the-art helical gear differentials designed, developed, and manufactured in the USA by Autotech Driveline. The Wavetrac® Differential is the only torque biasing differential on the market with patented technology that mitigates wheelspin when an unloaded wheel condition arises.

During zero axle load conditions, the Wavetrac cam device acts to create internal load, maintaining drive on the gripping wheel instead of acting like an open diff (and going nowhere!). Super strong 9310 alloy steel gears are enclosed in case-hardened steel bodies, held together with ARP fasteners. All Wavetrac differentials include a transferable, Limited Lifetime Warranty. 3 1/4" bearing bore housing.


  • Patented Wavetrac design automatically improves grip in low traction conditions
  • 9310 steel gears run in case-hardened billet steel bodies.
  • Perform a lifetime of service without maintenance or rebuilds


  • 1975-1986 Ford F-150
  • 1975-1983 Ford F-100

What's In The Box?

  • 1 - Differenrial


  • Limited Lifetime Warranty