Sonnax 700R4 4L60 4L60E 4L65E 4L70E Input Drum Reinforcement Kit - Compatible with GM 77733-51K - Transmission Repair & Performance Upgrade for Chevy, GMC & Cadillac Vehicles

Product Description

SONNAX INPUT DRUM REINFORCEMENT KIT FOR 700-R4 4L60 4L60E 4L65E 4L70E This Kit includes: Reinforcement Sleeve Overrun Piston Inner Seal Overrun Piston Overrun Piston Outer Seal Instructions Description: Compatible with GM 4L60 4L60E 4L65E and 4L70E input drum assembly is known to crack where the input shaft is pressed into it (where the overrun clutch rides). Sonnax offers a hardened steel sleeve that reinforces the input drum to prevent this failure. No machining is required to use this kit.