GMC Sierra 1500 & SUV 4" Lift Kits (3 piece subframe) Tuff Country EZ-Ride Suspension's 3 piece sub-frame IFS lift kits for Chevy/GMC 1500 trucks, Suburban, Avalanche & Tahoe allow up to 35" tires and more fender clearance. These 2nd generation lift kits use a front and rear crossmember connected to a heavy skid plate that allow for a simple installation along with added protection and durability. These suspension kits maintain a factory ride and install without special tools. Fits Years: 1999, 2000, 2001, 2002, 2003, 2004, 2005