Sprags--or one-way clutches--are extremely important in GM TH350 and TH400 transmissions because they carry an up-shifting torque load. Prevent transmission failure with sprags and races from ATI Performance Products and compete with increased confidence.

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TCI C4 High Gear Clutch Piston for 743910.

TCI C4 High Gear Clutch Piston for 743910.

$61.73