-40%
4L60 4L60E 4L65E 4L70 Transmission Sonnax Input Drum Reinforcement Kit 77733-51K
$ 45.67
- Description
- Size Guide
Description
designed for use only with a stamped steel forward piston4L60, 4L60-E, 4L65-E, 4L70-E
Input Drum Reinforcement Kit
Part No.
77733-51K
Reinforcement Sleeve
Overrun Piston Inner Seal
Overrun Piston
Overrun Piston Outer Seal
The GM 4L60, 4L60-E, 4L65-E and 4L70-E input drum assembly is known to crack where the input shaft is pressed into it (where the overrun piston rides).
Sonnax offers a hardened steel sleeve that reinforces the input drum to prevent this failure.
Sonnax input drum reinforcement kit 77733-51K includes a custom manufactured overrun piston designed for use only with a stamped steel forward piston, eliminating the need to use aluminum forward pistons.
Custom overrun piston works with steel forward piston
Chromoly steel sleeve design will not block clutch feed oil
Universal design fits both early- and late-model units
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