Help-Setting up a trailer for Racing

Yea-On the way to Norwalk last fall we had a tire blow out and that was the first I have ever had in 49yrs--Is that NORMAL with bigger trailers it was apita on the toll road cause our spare was under the car in the trailer !!!!!!!!! Had to unload to car to get to it!!!!!! NEVER AGAIN-the spare goes in the back of the truck from now on--Steve