SCS Professional Series Quick Change Gear Set - 6 Spline - Set 611 - 4.11 Ratio 2.74 / 6.17 - 4.33 Ratio 2.89 / 6.50 Fresh Air System please follow the procedure outlined

please follow the procedure outlined in the instruction manual

Fully enclosed epoxy molded electrical coil for reliability

390 in Thick

Replaces AFCO 20038

SCS Professional Series Quick Change Gear Set - 6 Spline - Set 611 - 4.11 Ratio 2.74 / 6.17 - 4.33 Ratio 2.89 / 6.50 Fresh Air System please follow the procedure outlinedManufactured 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