Upgrades

850RE ZF8HP50 ZF8HP75 Zip Kit by Sonnax

850RE ZF8HP50 ZF8HP75 Zip Kit by Sonnax Part No. ZF8-GEN2-ZIP Sonnax Zip Kit ZF8-GEN2-ZIP targets the root cause of multiple complaints by sealing the critical circuit pressure losses in ZF8HP50, ZF8HP75 and Chrysler 850RE valve bodies. The kit...

845RE 850RE ZF8HP45 ZF8HP50 HD "D" Clutch Backing Plate by Sonnax

845RE 850RE ZF8HP45 ZF8HP50 HD "D" Clutch Backing Plate by Sonnax Part No. 35570-50 The "D" clutch in ZF8HP45, ZF8HP50, Chrysler 845RE and 850RE transmissions has a thin, stamped OE backing plate that allows flexing and bowing (coning) of the clutch...

ZF8HP 845RFE SHIFT KIT® Valve Body Repair Kit | GEN-1

The SK®8HP SHIFT KIT® Valve Body Repair Kit is engineered to address the most frequent ZF 8HP GEN1 and Chrysler 845RE transmission failures and shift complaints. Fits GEN1 ZF8HP45, ZF8HP55, ZF8HP70, ZF8HP90 and Chrysler 845RE Does not fit GEN2...

8HP70 8HP75 Adjustable Sure-Cool® System

This upgrade is recommended during rebuiding or transmission service as preventive maintenance on ZF8HP70 and ZF8HP75 units.  The Sure-Cool System provides three settings: Full Time Cooler Flow for maximum cooling 25% Bypass Mix for winter/cold...