Sonnax 4l60e shift kit crack#

3) Something else, or mix and match the Sonnax. 2) Transgo 4L60E-HD2 (does not appear to modify servos or boost valve) -or. Be aware, this requirement is the opposite of the requirement for input drum reinforcement kit 77733-01K. Can anyone recommend/compare the following shift kits (or suggest a different manufacturer): 1) Sonnax Performance Pack HP-4L60E-01 (with boost valve), Sonnax 1-2 super hold servo 77911-03K, Sonnax 4th servo 77767K. This kit must be used with a вЂ™97-later stamped steel forward piston, it cannot be used with '96-earlier aluminum forward piston or Sonnax billet forward piston 77764-01. An alternative input drum reinforcement kit 77733-01K is compatible with aluminum forward pistons, but cannot be used with stamped steel forward pistons. Sleeve design will not block clutch feed oil. Sleeve made from hardened chromoly steel. Can be installed in early- and late-model units. The Mega Monster-In-A-Box is applicable to 4L60E. Available are a performance Mega package and a SS variant for those needing additional horsepower and torque rating.

This kit comes with all the parts you need to make your transmission run like a Monster. Compatible with stamped steel forward pistons. The Monster-In-A-Box transmission rebuild kit for the 4L60E is available for GM vehicles. Includes a custom manufactured overrun piston.

Sonnax input drum reinforcement kit 77733-51K includes a custom manufactured overrun piston that is designed to be used only with a stamped steel forward piston, eliminating the need to use OE cast forward pistons or aftermarket billet forward pistons. Sonnax offers a hardened steel sleeve that reinforces the input drum to prevent this failure.

Sonnax 4l60e shift kit crack#

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).