40-60 Medium Duty 30 70-80 Heavy Duty 30 Bel Air 56 Biscayne 46 Brookwood 46 C10 Panel 34 C10 Pickup 37 C20 Pickup 38 C30 Panel 35 C30 Pickup 38 C40 33 C50 30 C60 29 C70 26 C80 26 Corvair 37 Corvette 66 El Camino 48 Impala 58 K10 Pickup 38 K20 Pickup 38 P10 Series 27 P20 Series 28 P30 Series 29 Sedan Delivery 40 Suburban 41 Truck 44