Sonnax 74574-HD Heavy Duty Overrun Clutch Hub 4L60, 4L60-E, 4L65-E, 4L70-E Alto New style Forward Piston Return

New style Forward Piston Return Spring Assembly (ACDelco - enables use of bonded piston in pre-97 units)

Surface Finish: Light oil from testing procedure

4R100 Transmission Overdrive Roller Clutch

(1)  Pressure Switch Manifold (includes fluid temperature sensor)

(1) 1-2 Accumulator Piston (F7AZ-7F251-AA)

Sonnax 74574-HD Heavy Duty Overrun Clutch Hub 4L60, 4L60-E, 4L65-E, 4L70-E Alto New style Forward Piston ReturnOther Part Number: 3587255620 Product Name: Automatic Transmission Clutch Hub Fitment Type: Performance Custom Items Included: Heavy Duty Overrun Clutch Hub Manufacturer Part Number: 74574 HD UPC: Does not apply Material: Steel Vintage Part: No Brand: Sonnax Series: High Performance Department: Performance Type: Clutch Hub Product Type: Performance Transmission Parts Universal Fitment: Yes Product Details: Performance Automatic Transmission Clutch Hub