I don't know about the B, but it was a Mack truck, I remember that ! It was big, and I wasn't big enough to brace my feet on the floor so I held on to something on the side of the door, all the time wondering if I could open the door and jump out ! I was in my very early teens at the time, probably 13 or 14 . The driver had the nerve to say, Well, we made it, didn't we ? !!! See, my luck was bad even back then, got a ride from the truck driver from hell ! Jack Childers in OKC