SCS Professional Series Quick Change Gear Set #17 30009BK Measures: 4-3/8" x 5-3/8" with

Measures: 4-3/8" x 5-3/8" with 3 pleats

Magnum engine

Heavy Duty 3/16" and 1/2" Steel Construction for Strength and Durability

The shoulder pads are improved

Chevy Vega 1971-80

SCS Professional Series Quick Change Gear Set #17 30009BK Measures: 4-3/8" x 5-3/8" withSCS 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