GrudgeBox Builder's Kit Configuration:2018-Up M8 Softail, Polished Door, N1 Shift Pattern FX and N1) that rotate

FX and N1)  that rotate on Permaglide bushings for a smooth

BAKER Offset Kick Arm comes standard

The straight arm is cast out of 304 Stainless Steel

We did not stop at just fixing the gear ratios

GrudgeBox Builder's Kit Configuration:2018-Up M8 Softail, Polished Door, N1 Shift Pattern FX and N1) that rotateThe GrudgeBox is a tough overdrive 6 speed to replace your stock 6 speed! The GrudgeBox was engineered with a focus on excessive torque capacity and crisp shifting. All gears are straight cut in a way that ensures maximum power transfer to the rear wheel. This gearset was designed and geared for the everyday highway riders, speed freaks, and even racers! Features Built to take high horsepower abuse found in late model H D performance applications