| 2018 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Two stage, 3/8 inch center bolt, with U-Bolt plate. No roll pin. Can use as heavy duty option. |
| 2017 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Two stage, 3/8 inch center bolt, with U-Bolt plate. No roll pin. Can use as heavy duty option. |
| 2016 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Two stage, 3/8 inch center bolt, with U-Bolt plate. No roll pin. Can use as heavy duty option. |
| 2014 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Two stage, 3/8 inch center bolt, with U-Bolt plate. No roll pin. Can use as heavy duty option. |
| 2015 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Two stage, 3/8 inch center bolt, with U-Bolt plate. No roll pin. Can use as heavy duty option. |
| 2015 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Two stage, 3/8 inch center bolt, with U-Bolt plate. No roll pin. Can use as heavy duty option. |
| 2014 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Two stage, 3/8 inch center bolt, with U-Bolt plate. No roll pin. Can use as heavy duty option. |
| 2017 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Two stage, 3/8 inch center bolt, with U-Bolt plate. No roll pin. Can use as heavy duty option. |
| 2018 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Two stage, 3/8 inch center bolt, with U-Bolt plate. No roll pin. Can use as heavy duty option. |
| 2016 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Two stage, 3/8 inch center bolt, with U-Bolt plate. No roll pin. Can use as heavy duty option. |
| 2012 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2013 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2009 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2008 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2011 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2010 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2004 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2005 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2006 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2007 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2002 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2003 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 1999 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2000 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2001 | GMC | Sierra 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2009 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2008 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2010 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2011 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2004 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2005 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2006 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2007 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 1999 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2000 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2001 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2002 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2003 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2013 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2012 | Chevrolet | Silverado 1500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2004 | GMC | Sierra 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2002 | GMC | Sierra 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2003 | GMC | Sierra 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 1999 | GMC | Sierra 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2000 | GMC | Sierra 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2001 | GMC | Sierra 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2005 | GMC | Sierra 2500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2006 | GMC | Sierra 2500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2007 | GMC | Sierra 2500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2010 | GMC | Sierra 2500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2011 | GMC | Sierra 2500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2008 | GMC | Sierra 2500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2009 | GMC | Sierra 2500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2013 | GMC | Sierra 2500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2012 | GMC | Sierra 2500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2010 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2013 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2012 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2011 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2004 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2005 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2006 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2007 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2008 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2009 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 1999 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2000 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2001 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2002 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2003 | Chevrolet | Silverado 2500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2010 | Chevrolet | Silverado 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2011 | Chevrolet | Silverado 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2012 | Chevrolet | Silverado 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2013 | Chevrolet | Silverado 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2007 | Chevrolet | Silverado 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2006 | Chevrolet | Silverado 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2005 | Chevrolet | Silverado 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2004 | Chevrolet | Silverado 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2009 | Chevrolet | Silverado 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2008 | Chevrolet | Silverado 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2001 | Chevrolet | Silverado 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2002 | Chevrolet | Silverado 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2003 | Chevrolet | Silverado 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2006 | GMC | Sierra 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2005 | GMC | Sierra 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2004 | GMC | Sierra 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2002 | GMC | Sierra 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2003 | GMC | Sierra 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2001 | GMC | Sierra 3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2012 | GMC | Sierra 3500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2013 | GMC | Sierra 3500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2009 | GMC | Sierra 3500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2008 | GMC | Sierra 3500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2007 | GMC | Sierra 3500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2011 | GMC | Sierra 3500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |
| 2010 | GMC | Sierra 3500 HD | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Heavy duty for all 2/1 springs, 3/8 inch center bolt, with U-Bolt plate. |