1.5-Inch Block & U-Bolt Kit for Silverado/Sierra 2500

About this part

1.5-Inch Block & U-Bolt Kit, fitment-checked

This 1.5-inch block and U-bolt kit fits 2001-2010 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD trucks, including the 2007 Classic versions of both. The blocks are 2.5 inches wide, powder coated black, and use a single 9/16-inch pin. U-bolts here are the square style, e-coated for corrosion resistance, with a 9/16-inch thread, 2.5-inch inside width, and 11.5-inch inside length.

Coverage on this 1.5-inch kit spans the 2001-2005 Silverado 2500 and 2001-2010 Silverado 2500 HD, the 2007 Silverado 2500 HD Classic, plus the 2001-2004 GMC Sierra 2500, 2001-2010 Sierra 2500 HD, and the 2007 Sierra 2500 HD Classic, in 4WD and RWD across WT, base, SL, SLE, LS, LT, LTZ, and SLT trims. Square U-bolts are what set this kit apart from the round-style sets, so measure the 2.5-inch inside width and 11.5-inch inside length against your axle before ordering. Rough Country lists the install at 2-3 hours.