These BDS Suspension BDS121304 Upper Control Arms (UCAs) for the GMC Sierra 2500HD / 3500HD are designed for improved strength, added suspension travel and elimination of ball joint binding on leveled and lifted Sierra vehicles. Built from high strength 1.5" OD x .120-wall tubing and fully welded for strength and durability. They use an indexed ball joint cup to correct the ball joint positioning for when used with leveling or full lift kits. Factory style durometer-specific rubber bushings are used for longer lasting durability (more durable than poly bushings). Featuring premium quality MOOG ball joints for smooth, quiet operation and superior corrosion resistance to arms that feature uni-balls, poly bushings or heims.

Features and Benefits:

• Ideal for vehicles lifted used leveling kits and lift kits
• Eliminates ball joint binding
• Indexed ball joint cup for more wheel travel
• MOOG premium quality ball joints (longer lasting than uni-ball)
• Clevite rubber frame bushings (more durable than poly)
• Fully assembled, ready to bolt in
• Designed to add 1.4 degrees of additional positive caster
• High strength 1.5" OD x .120-wall tubing
• Optional weld-on steering stops and wheel spacer supplied for use with factory wheels

• Will work with most leveling and 6" lift kits on the market.