Seller notes

You are buying a dual seal accumulator piston SET for the 4L80E series of transmissionsREQUIRES the later model 3/8" (.375") accumulator pinAccumulator pistons have slightly higher spring preload than stock, to help firm up shifs slightlyThis set includes two accumulator pistons - enough for one transmission Both accumulator pistons use two seals each, unlike the OE piston, to help eliminate pin wear This one solves the problem by providing two seals and uses the pin to stabilize the piston in t...

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