SCS Professional Series Quick Change Gear Set - 6 Spline - Set 613 - 4.11 Ratio 2.64 / 6.39 - 4.33 Ratio 2.78 / 6.74 EXT-ANT-KIT-VHF-ICOM All Models with 6-speed manual

All Models with 6-speed manual transmission

but you can't any better

Used for LS and Gen V LT engines with T56 transmissions

Reduces Slippage and Heat

VIKing Engine Bearings is a world class developer and manufacturer of engine bearings

SCS Professional Series Quick Change Gear Set - 6 Spline - Set 613 - 4.11 Ratio 2.64 / 6.39 - 4.33 Ratio 2.78 / 6.74 EXT-ANT-KIT-VHF-ICOM All Models with 6-speed manualManufactured 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