50-60 Medium Trucks 23 80 Series Heavy Truck 23 Bel Air 52 Biscayne 44 C10 Panel 26 C10 Pickup 30 C20 Pickup 32 C30 Panel 26 C30 Pickup 31 Chevelle 64 Chevy II 51 Corvair 39 Corvan 29 Corvette 53 El Camino 56 G10 Van 21 Impala 58 K10 Pickup 30 K20 Pickup 32 Malibu 50 Nova 50 P10 Series 22 P20 Series 24 P30 Series 24 Suburban 31