This article is from the The Monster Truck FAQ, by Jeff Hawkins with numerous contributions by others.
A. To become a BIGFOOT Driver, you must be 25 years of age & have a
current CDL (commercial drivers license). You need to be in good
physical shape, have knowledge of mechanics, electrical & metal
fabrication before you are even considered for the crew. If you
make the crew, you would most likely serve 2 years apprenticeship
to learn to drive.