| 2000 | Workhorse | P30 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2001 | Chevrolet | P30 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2001 | Workhorse | P30 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2002 | Chevrolet | P30 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2002 | Workhorse | P30 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2003 | Workhorse | P30 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2004 | Workhorse | P30 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2005 | Workhorse | P30 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2000 | Workhorse | P32 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2000 | Workhorse | P32 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2001 | Workhorse | P32 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2001 | Workhorse | P32 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2002 | Workhorse | P32 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2002 | Workhorse | P32 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2003 | Workhorse | P32 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2003 | Workhorse | P32 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2004 | Workhorse | P32 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2004 | Workhorse | P32 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2005 | Workhorse | P32 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2005 | Workhorse | P32 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2000 | Workhorse | P32 Motorhome | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2001 | Workhorse | P32 Motorhome | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2002 | Workhorse | P32 Motorhome | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2003 | Workhorse | P32 Motorhome | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2004 | Workhorse | P32 Motorhome | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2005 | Workhorse | P32 Motorhome | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2006 | Workhorse | P32 Motorhome | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2007 | Workhorse | P32 Motorhome | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2008 | Workhorse | P32 Motorhome | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2000 | Chevrolet | P30 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2003 | Chevrolet | P30 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2004 | Chevrolet | P30 | | 52 inch Springs with 9/16 inch diameter spring bolts |
| 2005 | Chevrolet | P30 | | 52 inch Springs with 9/16 inch diameter spring bolts |