Tuff Country's block and u-bolts kits are an economical solution to raising the rear end of many trucks and SUVs. Lift blocks are inserted between the factory axle and leaf spring to lift the rear end. Each kit includes lift blocks and extended zinc plated u-bolts, custom fit for the application.
2006-2023 GMC Sierra 1500 4wd-4in. Rear Block/U-Bolt Kit
Fitment
2006 Chevrolet Silverado 1500 Hybrid
2006 Chevrolet Silverado 1500 LS
2006 Chevrolet Silverado 1500 LT
2006 Chevrolet Silverado 1500 WT
2006 GMC Sierra 1500 Hybrid
2006 GMC Sierra 1500 SL
2006 GMC Sierra 1500 SLE
2006 GMC Sierra 1500 SLT
2006 GMC Sierra 1500 WT
2007 Chevrolet Silverado 1500 LT
2007 Chevrolet Silverado 1500 LTZ
2007 Chevrolet Silverado 1500 WT
2007 Chevrolet Silverado 1500 Classic Hybrid
2007 Chevrolet Silverado 1500 Classic LS
2007 Chevrolet Silverado 1500 Classic LT
2007 Chevrolet Silverado 1500 Classic WT
2007 GMC Sierra 1500 SLE
2007 GMC Sierra 1500 SLT
2007 GMC Sierra 1500 WT
2007 GMC Sierra 1500 Classic Hybrid
2007 GMC Sierra 1500 Classic SL
2007 GMC Sierra 1500 Classic SLE
2007 GMC Sierra 1500 Classic SLT
2007 GMC Sierra 1500 Classic WT
2008 Chevrolet Silverado 1500 LS
2008 Chevrolet Silverado 1500 LT
2008 Chevrolet Silverado 1500 LTZ
2008 Chevrolet Silverado 1500 WT
2008 GMC Sierra 1500 SL
2008 GMC Sierra 1500 SLE
2008 GMC Sierra 1500 SLT
2008 GMC Sierra 1500 WT
2009 Chevrolet Silverado 1500 Hybrid
2009 Chevrolet Silverado 1500 LS
2009 Chevrolet Silverado 1500 LT
2009 Chevrolet Silverado 1500 LTZ
2009 Chevrolet Silverado 1500 WT
2009 GMC Sierra 1500 Hybrid
2009 GMC Sierra 1500 SL
2009 GMC Sierra 1500 SLE
2009 GMC Sierra 1500 SLT
2009 GMC Sierra 1500 WT
2010 Chevrolet Silverado 1500 Hybrid
2010 Chevrolet Silverado 1500 LS
2010 Chevrolet Silverado 1500 LT
2010 Chevrolet Silverado 1500 LTZ
2010 Chevrolet Silverado 1500 WT
2010 GMC Sierra 1500 Hybrid
2010 GMC Sierra 1500 SL
2010 GMC Sierra 1500 SLE
2010 GMC Sierra 1500 SLT
2010 GMC Sierra 1500 WT
2011 Chevrolet Silverado 1500 Hybrid
2011 Chevrolet Silverado 1500 LS
2011 Chevrolet Silverado 1500 LT
2011 Chevrolet Silverado 1500 LTZ
2011 Chevrolet Silverado 1500 WT
2011 GMC Sierra 1500 Hybrid
2011 GMC Sierra 1500 SL
2011 GMC Sierra 1500 SLE
2011 GMC Sierra 1500 SLT
2011 GMC Sierra 1500 WT
2012 Chevrolet Silverado 1500 Hybrid
2012 Chevrolet Silverado 1500 LS
2012 Chevrolet Silverado 1500 LT
2012 Chevrolet Silverado 1500 LTZ
2012 Chevrolet Silverado 1500 WT
2012 GMC Sierra 1500 Hybrid
2012 GMC Sierra 1500 SL
2012 GMC Sierra 1500 SLE
2012 GMC Sierra 1500 SLT
2012 GMC Sierra 1500 WT
2013 Chevrolet Silverado 1500 Hybrid
2013 Chevrolet Silverado 1500 LS
2013 Chevrolet Silverado 1500 LT
2013 Chevrolet Silverado 1500 LTZ
2013 Chevrolet Silverado 1500 WT
2013 GMC Sierra 1500 Hybrid
2013 GMC Sierra 1500 SL
2013 GMC Sierra 1500 SLE
2013 GMC Sierra 1500 SLT
2013 GMC Sierra 1500 WT
2014 Chevrolet Silverado 1500 High Country
2014 Chevrolet Silverado 1500 LT
2014 Chevrolet Silverado 1500 LTZ
2014 Chevrolet Silverado 1500 WT
2014 GMC Sierra 1500 Base
2014 GMC Sierra 1500 Denali
2014 GMC Sierra 1500 SLE
2014 GMC Sierra 1500 SLT
2015 Chevrolet Silverado 1500 High Country
2015 Chevrolet Silverado 1500 LS
2015 Chevrolet Silverado 1500 LT
2015 Chevrolet Silverado 1500 LTZ
2015 Chevrolet Silverado 1500 SSV
2015 Chevrolet Silverado 1500 WT
2015 GMC Sierra 1500 Base
2015 GMC Sierra 1500 Denali
2015 GMC Sierra 1500 SLE
2015 GMC Sierra 1500 SLT
2016 Chevrolet Silverado 1500 Custom
2016 Chevrolet Silverado 1500 High Country
2016 Chevrolet Silverado 1500 LS
2016 Chevrolet Silverado 1500 LT
2016 Chevrolet Silverado 1500 LTZ
2016 Chevrolet Silverado 1500 SSV
2016 Chevrolet Silverado 1500 WT
2016 GMC Sierra 1500 Base
2016 GMC Sierra 1500 Denali
2016 GMC Sierra 1500 SLE
2016 GMC Sierra 1500 SLT
2017 Chevrolet Silverado 1500 Custom
2017 Chevrolet Silverado 1500 High Country
2017 Chevrolet Silverado 1500 LS
2017 Chevrolet Silverado 1500 LT
2017 Chevrolet Silverado 1500 LTZ
2017 Chevrolet Silverado 1500 SSV
2017 Chevrolet Silverado 1500 WT
2017 GMC Sierra 1500 Base
2017 GMC Sierra 1500 Denali
2017 GMC Sierra 1500 SLE
2017 GMC Sierra 1500 SLT
2018 Chevrolet Silverado 1500 Custom
2018 Chevrolet Silverado 1500 High Country
2018 Chevrolet Silverado 1500 LS
2018 Chevrolet Silverado 1500 LT
2018 Chevrolet Silverado 1500 LTZ
2018 Chevrolet Silverado 1500 SSV
2018 Chevrolet Silverado 1500 WT
2018 GMC Sierra 1500 Base
2018 GMC Sierra 1500 Denali
2018 GMC Sierra 1500 SLE
2018 GMC Sierra 1500 SLT
2019 Chevrolet Silverado 1500 Custom
2019 Chevrolet Silverado 1500 Custom Trail Boss
2019 Chevrolet Silverado 1500 High Country
2019 Chevrolet Silverado 1500 LT
2019 Chevrolet Silverado 1500 LT Trail Boss
2019 Chevrolet Silverado 1500 LTZ
2019 Chevrolet Silverado 1500 RST
2019 Chevrolet Silverado 1500 SSV
2019 Chevrolet Silverado 1500 WT
2020 Chevrolet Silverado 1500 Custom
2020 Chevrolet Silverado 1500 Custom Trail Boss
2020 Chevrolet Silverado 1500 High Country
2020 Chevrolet Silverado 1500 LT
2020 Chevrolet Silverado 1500 LT Trail Boss
2020 Chevrolet Silverado 1500 LTZ
2020 Chevrolet Silverado 1500 RST
2020 Chevrolet Silverado 1500 SSV
2020 Chevrolet Silverado 1500 WT
2021 Chevrolet Silverado 1500 Custom
2021 Chevrolet Silverado 1500 Custom Trail Boss
2021 Chevrolet Silverado 1500 High Country
2021 Chevrolet Silverado 1500 LT
2021 Chevrolet Silverado 1500 LT Trail Boss
2021 Chevrolet Silverado 1500 LTZ
2021 Chevrolet Silverado 1500 RST
2021 Chevrolet Silverado 1500 SSV
2021 Chevrolet Silverado 1500 WT
2022 Chevrolet Silverado 1500 Custom
2022 Chevrolet Silverado 1500 Custom Trail Boss
2022 Chevrolet Silverado 1500 High Country
2022 Chevrolet Silverado 1500 LT
2022 Chevrolet Silverado 1500 LT Trail Boss
2022 Chevrolet Silverado 1500 LTZ
2022 Chevrolet Silverado 1500 RST
2022 Chevrolet Silverado 1500 WT
2022 Chevrolet Silverado 1500 ZR2
2023 Chevrolet Silverado 1500 Custom
2023 Chevrolet Silverado 1500 Custom Trail Boss
2023 Chevrolet Silverado 1500 High Country
2023 Chevrolet Silverado 1500 LT
2023 Chevrolet Silverado 1500 LT Trail Boss
2023 Chevrolet Silverado 1500 LTZ
2023 Chevrolet Silverado 1500 PPV
2023 Chevrolet Silverado 1500 RST
2023 Chevrolet Silverado 1500 WT
2023 Chevrolet Silverado 1500 ZR2
