Amy addresses the raccoons under Ty's trailer as Rocky and Bullwinkle. This might be a reference to the song "Rocky Raccoon" from the Beatles' self titled album "The Beatles" aka "The White Album". Correction: The Bullwinkle Show was a popular American animated TV series that ran from 1959-1963. The two main characters were Rocky the flying squirrel and Bullwinkle the moose. The series is referenced in American culture to this day.
Tim has a different truck - a 2007 Dodge Ram duelly.