50-60 Medium Trucks 23 80 Series Heavy Truck 23 Bel Air 53 Biscayne 45 C10 Panel 26 C10 Pickup 31 C20 Pickup 33 C30 Panel 26 C30 Pickup 32 Chevelle 66 Chevy II 54 Corvair 40 Corvan 29 Corvette 58 El Camino 56 G10 Van 21 Impala 60 K10 Pickup 31 K20 Pickup 33 Malibu 51 Nova 53 P10 Series 22 P20 Series 24 P30 Series 24 Suburban 32