Heavy Duty “A” Clutch Backing Plate - Transmission Digest

Heavy Duty “A” Clutch Backing Plate

Prevent flexing of the clutch pack in ZF8HP70 and ZF8HP75 transmissions when the clutch is applied by upgrading from the OE backing plate to the Sonnax heavy-duty backing plate (p/n 35577-70), eliminating the leading cause of “A” clutch failure. This easy-to-install plate is twice as thick as the OE for significantly improved protection against burnup.

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