You will receive 2 new steering knuckles, 1 left & 1 right. These are designed for a 6" Pro Comp lift kit k1141T, k1142T, K1143T, and K1144T. ---Pro Comp box # 51007B-2 ---Driver side knuckle part # 90-4491 ---Passenger side knuckle part # 90-4492 Fitment Guide: Chevrolet / GMC ---Silverado 1500 2007-2013 ---Sierra 1500 2007-2013 ---Suburban 1500 2007-2014 ---Tahoe 2007-2014 ---Yukon 1500 2007-2014.
