Transmission Parts BMW Chrysler ZF Internal Bushing

Print Share

Symptoms:

Material: Steel-backed alloy
Bushing Style: Precision
Housing Bore: 1.419&quot;
Shaft Dia.: 1.299&quot;
Width: 0.315&quot;

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

Cause:

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.

Correction:

Install improved Sonnax P4 sun gear and planet carrier bushing to restore critical clearances and resist untimely wear.

Warning:

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.