The most popular truck at Monster Jam is also one of the oldest: Grave Digger, a 1952 Ford-based terror that’s been bringing fear and mayhem to events since 1982.

Zimmer, who has been driving since 2004, will be in what he calls the most famous truck in the sport – Grave Digger. Q. When did you realize you were meant to be a Monster Jam truck driver?

The real behemoths come out in South Philadelphia this weekend as giant -- dare we say "Monster" -- trucks take over Lincoln Financial Field. There are several tiers of timed admission to keep in ...