Rough Country - 209-7.5-inch Suspension Lift System for Chevrolet: 07-13 Avalanche 1500 4WD FEATURES: Provides highly sought level stance; High clearance crossmember design gives unmatched ground clearance; Requires no modification to the stock differential mounts, drivetrain or exhaust; 100% precision laser cut materials using the latest computer aided design process; No need to disassemble your struts to install NOTES: Does not fit Auto Ride or Auto Leveling models; Does not fit models with electric steering; Does not fit AWD models; Minor cutting and drilling is required; 18-inch or larger wheels are required; Please view instructions for complete information on proper tire and wheel combinations KIT CONTENTS: Front: Lifted knuckles, front and rear crossmembers, upper strut spacers, differential drop brackets, CV spacers, sway bar drop brackets, lower skid plate, brakeline brackets, and hardware; Rear: Lifted coil springs, sway bar links, track bar bracket, shock extensions, and hardware SPECS: Installation Time: 8-10 hours; Recommended Tire Size: 35-by-12.50; Weight: 195.67-lbs FITMENT: Chevrolet: 07-13 Avalanche 1500 4WD