Well here's the thing..Before I went to Sand mountain Nv. in Sept. I was swapping out the knobbies for the paddles and found my left rear hub loose..I know I tightened it up when I installed the rear hubs. I didn't think anything of it and tightened it back up. went out and rode for a couple days and checked it before and after every ride and a few times during the day while riding and never came loose. well the other day when i was swapping the paddles for the knobbies (to put the shee away after not being able to touch it since the wreck) I found the hub loose again. What should I look for when I pull the hub off?? I know to look at the splines on both but what else should i look for, if anything. Thanks in advance.