I have to replace the rear output shaft bearing in my engine and in order to do that I have to split the case. While I'm at it I guess I will rebuild at least the top end. Are there any complete kits anyone can recommend? Any advice as to what else I should change out while I'm in there? I know I saw something about a one way bearing and a bevel gear but can't remember where I saw that. What is the rule of thumb for gearing? Colors/weight. I am in AZ but don't do much sand riding, mostly rocky trails. Any advice would be greatly appreciated. The engine has just over 5300 miles and was running well before the bearing fell apart so I assume the bottom end should be OK. Thank you in advance