Had to change a water pump on my Pontiac 400 on the side of the freeway while I was on a 4 hr. trip. luckily a farmer working his field next to the freeway gave me a ride into town, had a tool bag in the trunk.I keep a tool bag in my truck because it's not unusual for me to end up working on something for other folks . Mostly screwdrivers , various types of pliers , adjustable wrench , and a few other things . I'm not going to try to change a water pump or a tie rod on the side of the road .