Zone Offroad C31 3-Inch Adventure Series Suspension Lift Kit

The Zone Offroad C31 is a 3-inch Adventure Series lift system designed for 2001-2010 Chevrolet Silverado and GMC Sierra 2500HD/3500HD 4WD trucks, as well as 1999-2006 Silverado/Sierra 1500 HD models. This comprehensive suspension lift kit is built around heavy-duty replacement upper control arms engineered to deliver improved ride height and performance while maintaining proper suspension geometry.

Key Features:

• Precision-engineered upper control arms made from 3/16-inch steel that is laser cut, formed, and fully welded for maximum strength
• Pre-installed Raybestos brand ball joints and rubber bushings for easy installation and long service life
• Repositioned ball joints to compensate for added lift and maintain neutral position at ride height
• Full differential drop system that relocates the differential down 2 inches to maintain proper CV shaft angles at 3-inch lift height
• Includes differential skid plate for protection in the relocated position
• Rear lift achieved with 2-inch blocks and U-bolts
• Indexed torsion bar keys included

The kit provides 3 inches of front lift and 2 inches of rear lift, accommodating up to 33 x 12.50 tires on 17-inch wheels with 5-inch backspacing. This kit is designed for vehicles with specific RPO codes: FT2, FT3, FT4, FT5, FT6, or FT7 (verify RPO codes in glovebox to determine correct kit). Installation requires frame bracket modification and a torsion bar unloading/loading tool. Not compatible with dually models.