Fast Shipping on All Timbren Kits
| Application | Year | 2 Wheel Drive | 4 Wheel Drive | ||
| Front | Rear | Front | Rear | ||
| 3500 SIERRA, SILVERADO Single rear wheel | 2006-10 | GMFK25S | GMRCK35S | GMFK25S | GMRCK35S |
| 3500 SILVERADO excl. single rear wheel | 2001-10 | GMFK25S | GMRCK35C | GMFK25S | GMRCK35C |
| C30, C3500, K30, K3500 with front cast lower control arm | 1996-00 | GMFC1588H | GMRC30 | GMFK25S | GMRC30 |
| C30, C3500, K30, K3500 with front stamped lower control arm | 1990-96 | GMFC1588H | GMRC30 | GMFK35C | GMRC30 |
| C30, C3500, K30, K3500 | 1973-89 | GMFC15 | GMRC30 | GMFK10 | GMRK30 |
| C2500 HD, C3500 HD OEM Box Delete - 42" frame spacing | 2007-10 | GMFK25S | GMRCK35S | ||
| C3500 HD OEM - 34" frame spacing | 2007-10 | GMFK25S | GMRCK35C | GMFK25S | GMRCK35C |
Fast Shipping on All Timbren Kits
| Application | Year | 2 Wheel Drive | 4 Wheel Drive | ||
| Front | Rear | Front | Rear | ||
| 3500 SIERRA, SILVERADO Single rear wheel | 2006-10 | GMFK25S | GMRCK35S | GMFK25S | GMRCK35S |
| 3500 SILVERADO excl. single rear wheel | 2001-10 | GMFK25S | GMRCK35C | GMFK25S | GMRCK35C |
| C30, C3500, K30, K3500 with front cast lower control arm | 1996-00 | GMFC1588H | GMRC30 | GMFK25S | GMRC30 |
| C30, C3500, K30, K3500 with front stamped lower control arm | 1990-96 | GMFC1588H | GMRC30 | GMFK35C | GMRC30 |
| C30, C3500, K30, K3500 | 1973-89 | GMFC15 | GMRC30 | GMFK10 | GMRK30 |
| C2500 HD, C3500 HD OEM Box Delete - 42" frame spacing | 2007-10 | GMFK25S | GMRCK35S | ||
| C3500 HD OEM - 34" frame spacing | 2007-10 | GMFK25S | GMRCK35C | GMFK25S | GMRCK35C |