SCS Professional Series Quick Change Gear Set #13 Fuel Additive 312 in Rectangular Port

312 in Rectangular Port

Sizes: 6 1/2 (52) to 7 3/8 (59) white and 6 3/4 (54) to 7 3/8 (59) graphics

1989-1990 Chevrolet R3500

Pontiac: Grand Prix 67 - 69 7 L Engine

SCS Professional Series Quick Change Gear Set #13 Fuel Additive 312 in Rectangular PortSCS Professional Series Quick Change Gears are made from aircraft steel for maximum strength. Each gear has a shaved finish to minimize backlash and run out, and is broached for proper 10 spline shaft fit. The SCS Extra 5 step heat treating process yields maximum gear life for high stress applications such as big block Oswego Super Modifieds and World of Outlaws Sprint Cars. Gears have a black oxide finish, and the faces have been lightened to reduce