200-4r, 4l60, 4l60-e, 4l65-e, 4l70-e Pinless Accumulator Piston Kit Sonnax

Details:

In listed GM units, it is common to have poor shift quality, burnt bands or clutches due to accumulator piston wear. Repeated reciprocation of the accumulator piston causes wear at the piston pin bore interface. After this wear reaches a critical point, fluid loss through the piston pin bore cannot be compensated due to lack of pump volume. In addition, the piston can get cocked and gall the accumulator bore due to the pin bore wear or the spring bottoming out. To prevent these conditions in the...

Specifications:

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