I washed the truck today after yesterday's SCCX Xcursion and found that the nut of the horizontal bolt for the clamp is missing. The tire keeps the bolt from completely coming off. Went to Home Depot and replaced the missing nut and bought a couple of locking washers for a tighter fit but upon closer inspection, the cicular tube is also gone. Wlll have to call SLR tomorrow and ask for a replacement of said missing part.

Moral of the story:
Make sure you tighten your nuts!