KM175-177 Transmission shift kit Corrects, prevents or reduces soft shifts, long shifts, 3-4 neutral, harsh downshifts, no reverse or no forward engagement, no torque converter charge, no or low cooler flow. Comes with complete, easy to follow instructions. Does not fit 3 Speed KM 170,171,172 or 4 Speed "F4A-41", "F4A-51", "A4AF-3", or "R4A-51".