The bike is a 1976 sportster ch. I just noticed thAt the in-out end play on my main shaft is 1/16! I know it's a loose sloppy beast, but that's just not right! So I guess the question is where do I start? First gear washers? Pull the whole tranny? Any ideas out there? The engine is out of the frame sitting on a bench. Originally this post was supposed to be about sprocket combos and gear ratios. Any thoughts on that are welcome too. Thanks.