123392 - PRESSURE PLATE A CLUTCH (SONNAX) H/D

# 123392

PRESSURE PLATE A CLUTCH (SONNAX) H/D

Symptoms:

No Reverse
Reverse slip
"A" Clutch burned
Gear ratio codes
Slipping gears

Cause:
The weak OE "A" clutch backing plate allows major flex that causes irregular clutch wear and burning.

Correction:
Eliminate the flexing that leads to comebacks by installing the thicker, stiffer Sonnax "A" clutch backing plate.

The "A" clutch in ZF8HP70 and ZF8HP75 transmissions has a thin, stamped OE backing plate that allows flexing and bowing (coning) of the clutch pack. This wears the clutches unevenly, generating and concentrating extra heat which leads to clutch burnup. The result is slipping or no 1st/2nd, 7th/8th and Reverse Gears and ratio codes. This Sonnax heavy duty “A” clutch backing plate is designed to prevent flexing when the clutch is applied, eliminating the leading cause of "A" clutch failure.

2X thicker than weak, stamped OE backing plate for significantly improved protection against burnup
Easy to install, no special tools or machining required
Prevents comebacks by installing in units that have not yet failed

Specifications: