I only need the shaft and all the gears that the sprocket ride on. I cross referenced a few part numbers. The shaft, 4th gear, and the LH bearing all have different PN's between the kat and bandit. I didn't check all of the bushings or washers, just the shaft, gears, and bearings. The ID and OD of the LH bearing is the same size but the depth is less in the katana bearing. I did cross reference the numbers from the katana 750 to the katana 600 and they were both the same. There's a few cheap buys on ebay for kat 600 transmissions. Maybe I'll go this route first.