So I bought a 08 450 Grizz recently and since I purchased it, I have noticed a clunking or rattling noise from the CVT area when the engine brake is active and coming to a stop. At first I thought it was just the CVT but after more research I have read that it might be the bearing. I was going to take the CVT apart sometime to clean and grease anyway. How hard is it to take the CVT down to get the the weights in order to grease and check it all out, and how much more work is it to change the bearing? I am not completely dumb when it comes to mechanical stuff, but have never messed with anything like it, but have someone who is typically really good at it. Just need to know if I should explore the possibility of taking it to a shop or just doing it all myself.