Spacer kits are designed for appearance, but will reduce suspension dropout travel and overall ride quality. COIL SPRING SPACER LIFT KIT - FRONT - 2.0" LIFT - CHEVY / GMC 1500 1999-2006. BLOCK AND EXTENDED U BOLT LIFT KIT - REAR - 2.0" LIFT - CHEVY / GMC 1500 1999+.