supreme suspensions - full lift kit for 2007-2020 chevrolet silverado & gmc sierra 1500 3" front lift strut spacers + 3" rear lift tapered blocks + square bend u-bolts 2wd 4wd (black) supreme suspensions <b>3" front + 3" rear lift kit</b><br><br>enhance the look of your vehicle and run larger tires with supreme suspension's front and rear lift kit. developed and rigorously tested by in-house engineers, our front strut spacers and rear blocks are precision machined using only the latest in metal fabrication technology. each piece is crafted with the optimal material blend for its specific application, ensuring a lifetime of dependability under even the most extreme riding conditions. included in this kit is our newly designed set of zinc phosphate coated u-bolts, iso 9001 certified and stamped to satisfy the highest quality control standards. supreme suspensions u-bolts are five times more corrosion resistant than those with typical zinc plating, in accordance with astm b117 testing.<br><br><b>fitment:</b><br> for 2007 - 2020 chevrolet silverado 1500 (2wd 4wd)<br> for 2007 - 2020 gmc sierra 1500 (2wd 4wd)<br>* only fits 6-lug models.<br>* does not fit 2007 classic models or silverado trailboss and sierra at4 and any other models equipped with arc / magneride / auto-ride / air-ride / self-leveling suspension systems.<br><br><b>contents:</b><br> (2x) front lift strut spacers<br> (2x) rear lift tapered blocks<br> (4x) square bend u-bolts<br> installation hardware & instructions<br> supreme suspensions pro pack<br><br><b>technical notes:</b><br> front lift: 3 inches | spacer thickness: 1.8 inches<br> rear lift: 3 inches | block specs: 9/16th pins, 5.8" long x 2.5" wide<br> u-bolts: 9/16" threads, 12" long x 2.5" wide<br><br><b>notes:</b><br>an alignment is always recommended if you are altering the height of your vehicle.<br><br>* please note that spacer thickness to lift height is <b>not</b> a 1:1 ratio; it is recommended that you measure your vehicle ride height before and after to see the full lift amount has been achieved.<br><br>** z71 / ltz models have factory rear blocks - rear lift height will vary depending on factory block size being replaced.