According to Jim (2001)

S3E23 The Truck

Cheryl enlists Jim's help to transport a massive paper-mâché grizzly bear created by the girls for "spirit week" at school. However, Jim has recently lost his truck in an arm wrestling contest and, driven by stubborn pride, declines to reclaim it. His reluctance to admit defeat complicates the situation, leaving Cheryl frustrated as they scramble to find a solution for the bear's transportation.