Ford CD4E and Mazda LA4A-EL transmissions may exhibit such problems as harsh engagements, and/or soft or harsh shifting, particularly from 1st to 2nd Gear. These complaints can be due to worn or out-of-round accumulator bores and/or pistons sticking in the bore. Sonnax accumulator piston kit 73840-24 for the 2-4 piston, S96945 for Low/Reverse and 73840-FWD for Forward. Anodized aluminum pistons have two O-rings that prevent blow-by leakage; Pistons have been dimensionally modified to stop in different axial locations to prevent them from hanging up or sticking on the previously worn bore edges; Modified replacement springs are included to fit the smaller piston pocket; Drop-in Zip Valve™ parts install quickly and easily
Piston Kit; Low / Reverse Accumulator; Sonnax 73840-LR; Contains Replacement Springs and O-Ring Type Piston
