Hey guys. I sheered the ears off of the front portion of my driveshaft where the universal joint joins. I know traxxas offers a metal one, does anybody offer anything better?

I also need a rear bulkhead cover (the part the pins go into), should I go traxxas or otherwise?

Lastly, I'm going to buy a stock tire and glue. Does anybody have the part number for a single tire and or can you recommend better pre-mounted tire/wheel combinations?