Chrysler 850RE Archives - Transmission Digest
Sonnax introduces heavy-duty ‘A’ clutch backing plate

Sonnax has introduced a new heavy duty “A” clutch backing plate (part no. 35577-45) for Chrysler 845RE and 850RE, and ZF 8HP45, 8HP50 and 8HP51 transmissions. Sonnax says that this plate can eliminate the flexing/bowing of the clutch pack that leads to comebacks in these transmissions, and recommends installing them in units that have not