2 bosses need to be hand ground for clearance around 2nd gear and 4th pinion. Machining of the cases is required. Output bearing is a roller bearing instead of a ball bearing on KZ models only. We modify your sprocket to fit the new shaft spline. Quick assembly and disassembly.
Large diameter shafts to resist bending loads.
Stock input shaft spline to adapt current baskets. Low maintenance, simple inspection. 37 years of experience designing and manufacturing high performance racing transmissions. Quality, Performance, Reliability. Since Steve Rice first came to us for his ZX3, we have supplied him with a KZ3, a ZX4.