This billet piston MUST BE PRESS-FIT
The problem depends on where the valve sticks
Standard Torx bits often fit loosely and damage the bell housing bolts during removal or installation of the bolts
Arrives as pictured
Reducing valve #1 regulates the pressure going to the two ON/OFF solenoids as well as the OD
Raybestos 000601 GM 6L80 Steel Clutch Pack 2006-ON tools This billet piston MUST BEInterchange Part Number: 45139C Manufacturer Part Number: 000601 Other Part Number: 601 Brand: Raybestos Manufacturer Warranty: Yes GM: 6L80 Steel Clutch Pack 2006 ON Part No. 000601 601 6L80 Steel Module. 000601 features 5 2nd, 6th Clutch , 4 3rd, 5th Reverse, 5 1st, 2nd, 3rd, 4th, 6 4th, 5th, 6th, 5 Low, Reverse Steel Clutch Plates.