The man who puts the dynamite into Jim's car, and with his accomplice, chases Rocky up the hill behind Jim's trailer, is famed stuntman, Terry Leonard, (who also appeared in Apocalypse Now (1979), and many others), and is uncredited in this episode.
At around 32 minutes, when Jim and Rocky are rounding the corner in Rocky's truck, an original style Taco Bell restaurant can be seen briefly.