07-13 Silverado/Sierra 1500 4WD
	
Add-A-Leaf C6159 recommended for a tail high stance.
	
All wheel drive models require front driveline modification.
	
Available with Zone Off-road Hydraulic or Nitro shocks.
	
Differential skid plate and support strut included for off-road protection.
	
Ductile Iron CNC machined steering knuckles maintain OE steering and ball joint geometry and allow fitment of 17" wheels.
	
Frame bracket modification and minor welding required.
	
Heavy duty boxed one-piece crossmembers that maintain a clean look.
	
Includes coil over struts with enhanced valving to control 33" tires.
	
Multi-point differential mounting system corrects drive line angles.
	
Over 90% Made in the USA - not a cheap import.
	
Rear solid cast iron blocks vs. fabricated blocks.
	
Strut compressor required for installation.
	
To reduce trimming required 20" wheels with 5 1/2 to 5 3/4" backspacing recommended.
	
Weld-in control arm pocket plate included.
	
Will not fit 2007 Classic models.
	
Will not fit 2009-12 two-mode hybrid models with electronic power steering (eps).
	
Works with factory Stabilitrak System.