Common complaints in Ford AODE and 4R70 series transmissions are delayed Forward engagement and harsh 1-2 shifts caused by the 1-2 accumulator bore in the case being worn or scored. This wear results in the loss of 2nd clutch pressure and the need to replace the case. Sonnax 1-2 accumulator sleeve kit 76890-01K salvages expensive cases and restores the 1-2 shift.

• Salvages expensive cases
• Restores 1-2 shifts
• Requires no machining of the case
• Sonnax tool 76890-TL simplifies installation and ensures correct sleeve orientation
• Drop-in Zip Valve™ parts install quickly and easily