I have new rear end gears now and have to get my speedometer back close to being accurate. I have gone to a 24 tooth gear and I need to go one or two teeth more. There seems to be two sizes of speedo gears and right now mine is the smaller one. I can't believe the bigger speedo gear will slide in and work just like the smaller one did, will it? Is there another sleeve for the bigger gears? I am stumped.