. "4-speed manual (starting in 1961)" . . . "PD-4501 Scenicruiser" . "3.4036" . . . . . . . . "General Motors PD 4501 Scenicruiser" . . "GMC Scenicruiser" . . "PD-4501" . . . "split level bus" . . "GM PD-4501 Scenicruiser" . "PD-4501 Scenicruiser" . . . . . . "Scenicruiser PD-4501" . . "1" . "Greyhound Scenicruiser" . . "One 3-speed manual + 2-speed clutch (1954-1962)" . . "Scenicruiser" . . "12.192" . . "2.4384" . "0001" . . . "0001" . . . . . .