clermontmotorsports.com is the best place to get parts for sure!!! You really have to watch the gear meshing with these, when you get it right, use the blue locklite on all the screws since they seem to come loose real easy. you need to go over these vehicles before you try them, make sure all the screws are tight, as far as your crystal i would call redcat and i am sure they will take care of it for you. good luck bro and dont worry its really part of the hobby, no matter what car or how much you spend, i got over 20 tanks before my volcano stripped a gear.