It’s easy to eliminate every critical weakness of the OE direct clutch/drum with the revolutionary Sonnax Smart-Tech kit. PROVEN to handle the most extreme horsepower and torque, this all-in-one upgrade delivers the ultimate in shaft and clutch durability for any driver pushing the limits of stock components.
- One-Piece Design
Eliminates weak point where drum splines strip & shafts break.
- Rugged Shaft
50% thicker & 2X as strong as the best 300M shafts.
- 17% More Clutch Capacity
Custom drum & piston hold one extra friction for optimum protection against burn-up.
Learn More
- 2.84/1.55 Ratio 4R70E/W, 4R75E/W Part No. 76656-01K
- 2.40/1.46 Ratio AODE Part No. 76656-02K
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