| Prefix |
Type |
| A |
Conventional 2 Axle - Diesel |
| B |
School Bus Chassis Cowl 2 Axle - Gas |
| C |
Tilt Cab 2 Axle - Gas |
| D |
Tilt Cab 2 Axle - Diesel |
| E |
Econoline |
| F |
Conventional 2 Axle - Gas |
| G |
Parcel Delivery Chassis 2 Axle - Diesel |
| H |
Tilt Cab 2 Axle - Diesel |
| J |
School Bus Chassis Cowl 2 Axle - Diesel |
| K |
Conventional 2 Axle - Diesel |
| L |
Tilt Cab Tandem Rear Axle - Diesel |
| M |
Conventional Tandem Rear Axle - Diesel |
| N |
Conventional 2 Axle - Diesel |
| P |
Parcel Delivery Chassis 2 Axle - Diesel |
| Q |
Tilt Cab Tandem - Diesel |
| R |
89" Conventional 2 Axle - Diesel |
| S |
89" Conventional Tandem Rear Axle - Gas |
| T |
Conventional Tandem Rear Axle - Gas |
| U |
Conventional Tandem Rear Axle - Diesel |
| U14 |
Bronco |
| U15 |
Bronco |
| W |
89" Conventional Tandem Rear Axle - Diesel |
| X |
Fwd. Axle Tilt Cab Tandem Rear Axle - Diesel |
| Z |
Fwd. Axle Tilt Cab 2 Axle - Diesel |
