boost valve kit sonnax 0 470in diameter x 1 907in long o ring style 4l60e 4l65e 4l70e Transmission_RN3F01A BELTA 2006-2016 4 SP F/4WD

BELTA 2006-2016 4 SP F/4WD L4 1

SILHOUETTE 2003-2004 4 SP F/4WD V6 3

6F50 2007-2012

OEM Number: E7TZ-7E449-A

Throttle valve spring (optional for later upshifts)

boost valve kit sonnax 0 470in diameter x 1 907in long o ring style 4l60e 4l65e 4l70e Transmission_RN3F01A BELTA 2006-2016 4 SP F/4WDSonnax Boost Valve Kit for 4L60E, 4L65E Transmissions Early Style, . 470" Diameter, OE Ratio, O ring Style GM 4L60 E and 4L65 E transmissions are often plagued by inadequate line rise, which can lead to the failure of the 3 4 clutch and 2 4 band, or result in poor shift quality. The frequent cycling of the EPC solenoid induces rapid wear on the boost sleeve. This wear allows oil that enters the torque signal orifice to leak past the boost valve and