| MAKE | MODEL | YEAR(S) | CYL | DESCRIPTION |
| Chevrolet | G Series Van 1 ton | 1991-1994 | 6 | All models with 4.3L engine over 8500lbs GVW |
| Ford | E - 350 Van 1 ton | 1996 | 8 | All models with 5.8L engine up to 8500lbs GVW, except California |
| GMC | G Series Van 1 ton | 1991-1994 | 6 | All models with 4.3L engine over 8500lbs GVW |