Alignment Kits

This unique, patented design provides the most adjustability and best clearance of any arm available for the ’63-’82 GM Corvette and ’65-’70 Impala applications. Sold as a pair, these forged steel adjustable arms come with ball studs that are 1/2″ taller than stock to improve camber curve. Dial in some caster combined with the ability to adjust camber, yields a truly ‘modern’ feeling suspension. The ball joints are greaseable and fully rebuildable. Additionally, OE length and 1/4″ extended studs are also available to fine tune ride characteristics and maximize specific suspension geometry. Consider combining upper control arms with available lower control arms to complete the transformation of any Pro Touring, Track Ready, or daily driven street use American Muscle car. Sold as pairs. US Patent No. 9,751,370.
Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.

• Patented design provides most adjustment on the market
• OE Length and additional 1/4″ length stud available
• Front Adjustment Range: Camber/Caster ±3.00°
• Greaseable and rebuildable ball joints
• Required: 1 per axle
• Sold as a pair

The unique patented design features the most adjustment and highest clearance available to update the front suspension of any ’84-’96 C4 Corvette. SPC uses a stock ball stud for optimal performance and the on-car adjustment capability for both camber and caster provide excellent road/track handling. The fully rebuildable and greaseable ball joints can also be customized with available 1/4″ extended studs to provide increased camber curve. Sold as pairs US Patent No. 9,751,370.
Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.

• Patented design provides most adjustment on the market
• OE Length and additional 1/4″ length stud available
• Front Adjustment Range: Camber/Caster ±3.00°
• Greaseable and rebuildable ball joints
• Required: 1 per axle
• Sold as a pair

This unique, patented design provides the most adjustability and best clearance of any arm available for the many popular ’71-’91 GM Pickup and SUV applications. Sold as a pair, these forged steel adjustable arms come with ball studs that are 1/2″ taller than stock to improve camber curve. Dial in some caster combined with the ability to adjust camber, yields a truly ‘modern’ feeling suspension. The ball joints are greaseable and fully rebuildable. Additionally, OE length and 1/4″ extended studs are also available to fine tune ride characteristics and maximize specific suspension geometry. Consider combining upper control arms with available lower control arms to complete the transformation of any Pro Touring, Track Ready, or daily driven street use American Muscle car. Sold as pairs. US Patent No. 9,751,370.
Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.

• Patented design provides most adjustment on the market
• OE Length and additional 1/4″ length stud available
• Front Adjustment Range: Camber/Caster ±3.00°
• Greaseable and rebuildable ball joints
• Required: 1 per axle
• Sold as a pair

This unique, patented design provides the most adjustability and best clearance of any arm available for the Ford Mustang II and custom applications. Sold as a pair, these forged steel adjustable arms come with ball studs that are 1/2″ taller than stock to improve camber curve. Dial in some caster combined with the ability to adjust camber, yields a truly ‘modern’ feeling suspension. The ball joints are greaseable and fully rebuildable. Additionally, OE length and 1/4″ extended studs are also available to fine tune ride characteristics and maximize specific suspension geometry. Consider combining upper control arms with available lower control arms to complete the transformation of any Pro Touring, Track Ready, or daily driven street use American Muscle car. Sold as pairs. US Patent No. 9,751,370.
Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.

• Patented design provides most adjustment on the market
• OE Length and additional 1/4″ length stud available
• Front Adjustment Range: Camber/Caster ±3.00°
• Greaseable and rebuildable ball joints
• Required: 1 per axle
• Sold as a pair

Designed, engineered, tested, and assembled in Colorado, SPC Performance adjustable upper control arms are loaded with impressive 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 tubular frame and Forged steel adjustment nose 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 drivability. The patented ball joint design gives more adjustability than any other arm on the market, use it in combination with cam adjusters on the lower arm to maximize tire clearance and minimize the need for frame mods. Use SPC #63020 to adjust thrust angle, replace OE lower cams with #86220. Sold as pairs. US Patent No. 7,513,514.
Adjustable front upper control arms for the Ford Ranger with chromoly tube steel construction, sealed modern architecture ball joints, and xAxis™ sealed flex joint joints in bonded rubber bushings
Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.

• 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 & extended threads make these arms compatible with knuckle gusset kits
• Arm’s adjustment range combine with OE adjusters corrects alignment angles for improved driveability and reduced tire wear & possible to move the tire forward to maximize clearance for larger tires without frame or fender modifications
• One piece polymer race Ball Joint with modern grease formula ensures quiet smooth operation & low turning torque for reduced wear and extended life that tests like OE
• New xAxis™ sealed flex joints in bonded rubber bushings allow for extended suspension travel & superior noise vibration and harshness (NVH) characteristics
• Chromoly tube and forged steel nose 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°
• For Aluminum Knuckles Only!
• Required: 1 per axle
• Sold as a pair

This unique, patented design provides the most adjustability and best clearance of any arm available for the many popular ’62-’76 classic Mopar applications. Sold as a pair, these forged steel adjustable arms come with ball studs that are 1/2″ taller than stock to improve camber curve. Dial in some caster combined with the ability to adjust camber, yields a truly ‘modern’ feeling suspension. The ball joints are greaseable and fully rebuildable. Additionally, OE length and 1/4″ extended studs are also available to fine tune ride characteristics and maximize specific suspension geometry. Consider combining upper control arms with available lower control arms to complete the transformation of any Pro Touring, Track Ready, or daily driven street use American Muscle car. Sold as pairs. US Patent No. 9,751,370.
Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.

• Patented design provides most adjustment on the market
• OE Length and additional 1/4″ length stud available
• Front Adjustment Range: Camber/Caster ±3.00°
• Greaseable and rebuildable ball joints
• Required: 1 per axle
• Sold as a pair