Sonnax forward clutch hub front washer 34298-078 replaces the OE .063″ thick washer in GM TH400, TH425, 4L80-E and 4L85-E transmissions between the forward clutch hub and the forward drum. It is .015″ thicker than OE and is the optimal way to tighten front unit endplay in most common builds.
- Forward hub washers are .015″ thicker than OE
- Installation between the forward drum and forward clutch hub reduces front unit endplay
- Material: Steel
- Thickness: 0.078″
- Outer Dia.: 1.781″
- Inner Dia.: 1.289″
These ship free anywhere in the US!