Designed, engineered, tested, and assembled in Colorado, SPC Performance adjustable upper control arms are loaded with features. Improve suspension travel, handling, and tire wear while centering the tire in the wheel well for maximum clearance needed for oversized tires. Now equipped with maintenance-free ball joints and free-pivoting xAxis™ sealed flex joints in bonded rubber sleeves, for correction of alignment angles and restoration of factory ride quality. A light-weight, forged aluminum design provides the strength and durability needed for the most demanding environments. SPC adjustable control arms have improved clearance to get around the spring bucket and a full 80° of articulation in the ball joint. When trucks are lifted, caster and camber angles are affected that can lead to poor handling characteristics such as ‘wandering’. SPC control arms have positive caster built-in for lifted vehicles to restore alignment angles and driveability. The patented ball joint design allows the tire to be positioned correctly in the wheel well and additional adjustment in the OE lower arms can maximize placement for oversized tires to avoid fender trimming. If replacement lower adjustment cams are needed, see part #25420. Sold as pairs. US Patent No. 7,513,514.

• Arm adjustability combined with OE adjusters corrects alignment for improved drivability and reduced tire wear while allowing the tire to move forward for increased clearance with larger tires and no frame or fender modifications
• Forged aluminum arm construction provides strength and reduced weight with built-in additional caster for lifted vehicles
• Front Adjustment Range: Camber ±2.00˚ / Caster 0.00˚ to +4.00˚
• Front Adjustment Range: Camber ±2.00° / Caster 0.00° to +4.00°
• Fully sealed ball joint design keeps grease in and contaminants out for maintenance-free operation
• New ball joint features a 25% larger stud cross section than OE for superior strength with E-Nickel coating for enhanced corrosion protection and 80° of articulation
• New xAxis™ sealed flex joints in bonded rubber bushings allow extended suspension travel with superior NVH characteristics
• One-piece polymer ball joint race with modern grease formula delivers quiet, smooth operation and low turning torque for reduced wear and extended OE-tested life
• Required: 1 per axle
• Sold as a pair