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. SPC's tubular steel and billet adjuster plate 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 re store alignment angles and drivability. 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 #25450. Sold as pairs. US Patent No. 7,513,514.

• Arm's adjustability combine with OE adjusters corrects alignment angles for improved drivability and reduced tire wear & makes it possible to move the tire forward to maximize clearance for larger tires without frame or fender modifications
• Ball joint's one piece polymer race with modern grease formula ensures quiet smooth operation & low turning torque for reduced wear and extended life that tests like OE
• New ball joint has 25% larger stud cross section than OE for superior strength & E-Nickel coating for superior corrosion protection while providing 80° of articulation
• New xAxis™ sealed flex joints in bonded rubber bushings allow for extended suspension travel & superior noise vibration and harshness (NVH) characteristics
• Forged steel arm construction provides maximum strength & clearance with additional caster provision for lifted vehicles built-in
• New fully sealed ball joint architecture keeps grease in and contaminants out for a maintenance-free joint
• Front Adjustment Range: Camber ±2.00˚ / Caster -1.00˚ to +3.00˚
• Front Adjustment Range: Camber ±2.00° / Caster 0.00° to +4.00°
• Required: 1 per axle
• Sold as a pair

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