Sonnax GM 700R4 Smart Tech Input Housing Kit 4L65E 4L70E 4L60E 4L60-E Automatic Transmission
OPT Product Code: SNX-77733-06KA
Product Details
Smart-Tech Input Housing Kit
Part No. 77733-06KA
- PTFE Impregnated Rear Stator Support Bushing
- Modified Input Housing
- Input Drum Reinforcement Sleeve
- Overrun Piston Inner Seal
- Reworked OE Overrun Piston
- 3-4 Clutch Apply Plate
- 3-4 Clutch Return Springs (10)
- Bolt-on Anchor Plate
- Overrun Piston Outer Seal
- FWD Piston Outer Seal
- FWD Piston Inner Seal
- Socket Head Cap Screws (15)
The Sonnax Smart-Tech input housing kit 77733-06KA addresses five weak areas of the GM 4L60, 4L60E, 4L65E, 4L70E input housing:
- Flexing or bowing of the 3-4 backing plate
- Limited 3-4 clutch torque capacity
- 3-4 snap-ring blow-out
- Input housing breakage near the input shaft spline
- Input housing fatigue failure
Flexing or bowing of OE and other aftermarket backing plates is eliminated with Sonnax’s heavy duty bolt-on anchoring plate. This unique design ensures even clamping of the 3-4 clutches in higher horsepower, higher pressure applications. By eliminating the 3-4 snap ring and using a thinner yet stiffer apply plate, space is made available for additional frictions and steels. This makes it possible to simultaneously increase clutch torque capacity and eliminate the possibility of retaining ring blow-out. A steel reinforcement sleeve prevents breakage in the spline area. Housing fatigue failure resistance and housing life are significantly improved with a special treatment process that greatly reduces stress crack formation.
The 4L60E was found in the full range of General Motors vehicles including, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, and SAAB. These transmissions are part of the Turbo-Hydramatic series and also known as: 4L60E, 4L60-E, 4L65E, 4L65-E, 4L70E, 4L70-E, 4L75E, 4L75-E, M30, M32, M70
-th.jpg "ATSG 700R4 Rebuild Manual 4L60 GM Automatic Transmission Overhaul Book Service Guide 87-1993 700-R4")
