Sonnax 35723HD-02 Heavy Duty Intermediate Overrun Clutch Outer Race for GM TH350/TH350C

The Sonnax 35723HD-02 is a revolutionary heavy duty intermediate overrun clutch outer race engineered specifically for GM TH350 and TH350C performance transmissions. This upgraded component delivers twice the torque capacity of any OEM or aftermarket race, making it an essential upgrade for high-performance and racing applications.

Engineered to Eliminate Common Failure Points:

• Offset lube holes positioned so rollers never travel directly over them, preventing stress fractures
• Strategic hole spacing ensures only one roller is ever positioned near a lube hole
• Redesigned spline geometry eliminates sharp inside corners at the base of outer splines
• Upgraded material specification and custom manufacturing process for superior durability
• Direct replacement design for easy installation

Race failure is a chronic problem in TH350 transmissions under high torque loads, with fractures typically occurring at the radial lube holes and spline bases. The Sonnax 35723HD-02 addresses every weak point in the original design, providing unrivaled reliability at any power level for street performance and racing applications.