Forward or direct clutch oil pressure loss can often be traced to wear and scoring of the 2-3 accumulator bores. Previously, the only lasting correction was to replace the case. 2-3 accumulator piston kit 76890-21K restores Forward line pressure and salvages damaged cases by repairing damaged 2-3 accumulator bores on AOD, AODE, 4R70E, 4R70W, 4R75E, 4R70W and 4R75W units. Press-in sleeves and a matched piston restore pressures and install easily, without machining or special tools. * Salvage transmission cases with damaged accumulator bore* Kit installs easily, with no special tools required* Eliminates concerns about bonded piston seal delamination

Sonnax 76890-21K Includes:

• Lower Sleeve Small
• Upper Sleeve Large
• D-Ring Seal Small
• D-Ring Seal Large