• Bushing wear
  • Bushing failure
  • Clutch failure
  • Harsh shifts
  • Gear ratio & solenoid codes


Premature wear due to sub-optimal OE bushing material in ZF 8-speed units allows fluid loss and misalignment that results in harsh shifting and clutch failure.


Install improved Sonnax P1 planet bushing to restore critical clearances and resist untimely wear.


Use of an arbor press is required for correct installation. Do not use a hydraulic press or a bushing driver/hammer combination to install, as doing so may distort the bushing and cause fitment issues.

ZF8HP70, ZF8HP75

P1 Planet Bushing
Part No. 35030-03A

Fits two-wheel drive units only.

Package Quantity: 5

View Instructions Find a Distributor

For four-wheel units, use 35030-03.

  • Material: Steel-backed alloy
  • Bushing Style: Precision
  • Housing Bore: 1.811"
  • Shaft Dia.: 1.692"
  • Width: 0.394"
  • ZF8HP70, ZF8HP75 P1 Planet Bushing 35030-03A