Fast Shipping on All Timbren Kits
| Application | Year | Front | Rear | ||
| Regular | Heavy Duty | Regular | Heavy Duty | ||
| 4500, 5500, 6500, 7500 excl. all wheel drive | 2003-09 | GMFTK | GMRC55 | GMRTKM | |
| 4500, 5500, 6500, 7500 all wheel drive | 2005-09 | GMF55AWD | GMRC55 | GMRTKM | |
| 6500 LoPro | 2003-09 | GMFTKLP | GMRC55 | GMRTKM | |
| Topkick & Kodiak C60, C70, C6000, C7000 except. LoPro | 1991-02 | GMFTK | GMRC55 | GMRTKM | |
| Topkick & Kodiak C60, C70, C6000, C7000 LoPro only | 1991-02 | GMFTKLP | GMRC55 | GMRTKM | |
| C50, C60, C70, C6000, C7000 | 1973-90 | GMFC70 | GMRC70 | ||
Fast Shipping on All Timbren Kits
| Application | Year | Front | Rear | ||
| Regular | Heavy Duty | Regular | Heavy Duty | ||
| 4500, 5500, 6500, 7500 excl. all wheel drive | 2003-09 | GMFTK | GMRC55 | GMRTKM | |
| 4500, 5500, 6500, 7500 all wheel drive | 2005-09 | GMF55AWD | GMRC55 | GMRTKM | |
| 6500 LoPro | 2003-09 | GMFTKLP | GMRC55 | GMRTKM | |
| Topkick & Kodiak C60, C70, C6000, C7000 except. LoPro | 1991-02 | GMFTK | GMRC55 | GMRTKM | |
| Topkick & Kodiak C60, C70, C6000, C7000 LoPro only | 1991-02 | GMFTKLP | GMRC55 | GMRTKM | |
| C50, C60, C70, C6000, C7000 | 1973-90 | GMFC70 | GMRC70 | ||