SCS Professional Series Quick Change Gear Set - 6 Spline - Set 616 - 4.11 Ratio 2.53 / 6.68 - 4.33 Ratio 2.66 / 7.04 BR10021 Eliminates shimming transmission bolts

Eliminates shimming transmission bolts

1997-1999 Chevrolet K1500

1935-1946 STREET ROD Street Rod CID 305

Intended for customers who desire the loudest and most aggressive sound they can find

SCS Professional Series Quick Change Gear Set - 6 Spline - Set 616 - 4.11 Ratio 2.53 / 6.68 - 4.33 Ratio 2.66 / 7.04 BR10021 Eliminates shimming transmission boltsManufactured from 9310 aircraft alloy for maximum strength, 6 spline quick change gears are crown hobbed, broached for 6 spline shaft fit, and black oxide finished for corrosion protection. Gears undergo a five step heat treating process to deliver maximum durability. Since 1979, SCS Gearbox, Inc. has been listening to it's customers! When SCS Gearbox first started manufacturing, it was to meet the needs of tractor pullers to provide specialized