SCS Professional Series Quick Change Gear Set - 6 Spline - Set 615 - 4.11 Ratio 2.57 / 6.58 - 4.33 Ratio 2.71 / 6.93 H77403FS vacuum advance and a billet

vacuum advance and a billet aluminum housing are just a few of the MSD advantages

Quality insulated crimp connectors are provided to make the necessary splices

this coil has a male secondary tower which offers superior boot and terminal retention and brass primary terminals for maximum conductivity

The Chevron-5 jackets feature a high quality

SCS Professional Series Quick Change Gear Set - 6 Spline - Set 615 - 4.11 Ratio 2.57 / 6.58 - 4.33 Ratio 2.71 / 6.93 H77403FS vacuum advance and a billetManufactured 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