SPC Performance

Use this patented design with the most adjustability and best clearance of any arm on the market to modernize the front suspension on your classic Chevy. SPC uses a 1/2" extended ball stud to improve...

Use this patented design with the most adjustability and best clearance of any arm on the market to modernize the front suspension on your classic Chevy. SPC uses a 1/2" extended ball stud to improve...

Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.

Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.

This unique, patented design allows for the most adjustability and best clearance of any arm on the market for a more modern front suspension on the classic Chevy C10. SPC uses a 1/2" extended ball...

Adjust camber and caster for maximum handling and performance with our adjustable arms for Corvettes, Impalas and 'Tri-5' Bodies. Arms include a steel cross shaft with street style or race pivots and...

Adjust camber and caster for maximum handling and performance with our adjustable arms for Corvettes, Impalas and 'Tri-5' Bodies. Arms include a steel cross shaft with street style or race pivots and...

Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.This Part Fits:YearMakeModelSubmodel1965-1967BuickGran...

SPC Performance Pro Spring Kit offers immediate handling enhancement and gives your muscle car an aggressive stance! Front springs provide a 1.3" drop and rear springs 1.0" drop. Highest quality and...

This stock-style replacement ball joint fits the SPC 94344 and 94374 A/F body lower control arms. This is Moog equivalent K5103.

This replacement ball joint fits the upper control arms on 1st & 2nd generation Ford Mustangs and associated vehicles from 1964.5 to 1970. This is Moog equivalent K8036.

These fully adjustable Upper Control Arms transform your classic MOPAR from sluggish, non-responsive handling to high performance FUN! Dial in additional positive caster, adjust your camber, and...

These fully adjustable Upper Control Arms transform your classic MOPAR from sluggish, non-responsive handling to high performance FUN! Dial in additional positive caster, adjust your camber, and...

Add an aggressive, ready to run stance to your F-body (1st Gen) with lower control arms from SPC. This pair of arms feature heavy duty 1.5" steel tubes with greasable delrin bushings giving you...

Modernize your early Ford and Mercury front suspension by installing these adjustable upper control arms and adjustable strut rods from SPC. SPC has built +3° of caster into the upper arm to improve...

SPC Performance Pro Spring Kit offers immediate handling enhancement and gives your muscle car an aggressive stance! Front springs provide a 1.3" drop and rear springs 1.0" drop. Highest quality and...

If you are running modern radial tires you should not follow factory alignment specifications for caster. SPC recommends 3deg of caster to promote return to center steering. Stock strut rods on late...

Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.

Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.

Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.

This stock-style replacement ball joint fits the SPC 94378 and 95336 G Body & F Body (2nd generation) lower control arms. This is Moog equivalent K6145T.

Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.

SPC Performance Pro Spring Kit offers immediate handling enhancement and gives your muscle car an aggressive stance! Front springs provide a 1.3" drop and rear springs 1.0" drop. Highest quality and...

These fully adjustable Upper Control Arms transform your classic MOPAR from sluggish, non-responsive handling to high performance FUN! Dial in additional positive caster, adjust your camber, and...

These fully adjustable Upper Control Arms transform your classic MOPAR from sluggish, non-responsive handling to high performance FUN! Dial in additional positive caster, adjust your camber, and...

SPC's Mustang II Adjustable Front Upper Control Arms are perfect for hot rod builders. With ±3° camber/caster change you can easily adjust the upper arms for maximum handling and minimized tire wear...

SPC's Mustang II Adjustable Front Upper Control Arms are perfect for hot rod builders. With ±3° camber/caster change you cna easily adjust the upper arms for maximum handling and minimized tire wear...

These camber/caster shims are now available in a corrugated box set to help you organize all of your shims. Covering both cars and trucks, this set is perfect for inventory control. Contains 50 Each:...

SPC Performance Pro Spring Kit offers immediate handling enhancement and gives your muscle car an aggressive stance! Front springs provide a 1.3" drop and rear springs 1.0" drop. Highest quality and...

Upgrade worn ball joints on your SPC Performance Adjustable Upper Control Arms with these redesigned joints. Designed, engineered, tested, and assembled in Colorado, these completely redesigned,...

Adjust camber and caster for maximum handling and performance with our adjustable arms for Corvettes, Impalas and 'Tri-5' Bodies. Arms include a steel cross shaft with street style or race pivots and...

Adjust camber and caster for maximum handling and performance with our adjustable arms for Corvettes, Impalas and 'Tri-5' Bodies. Arms include a steel cross shaft with street style or race pivots and...

Adjust camber and caster for maximum handling and performance with our adjustable arms for Corvettes, Impalas and 'Tri-5' Bodies. Arms include a steel cross shaft with street style or race pivots and...

Adjust camber and caster for maximum handling and performance with our adjustable arms for Corvettes, Impalas and 'Tri-5' Bodies. Arms include a steel cross shaft with street style or race pivots and...

These ball joints fit a variety of GM and Chrysler applications. If you are installaing our Adjustable Control Arms these ball joints are the perfect fit to finish your suspension upgrade or a direct...

These great looking kits adjust toe with a polished aluminum red finish. May be used alone, however a toe adjuster should be used with Clearance Arms.This Part...

For popular Honda Civics and Acura Integras. These arms are for vehicles that retain the stock ride height or have been lowered for performance. Simply replace the OE arm with the EZ Arm XR, and you...

These adjustable upper ball joints make front camber adjustments for many vehicles with upper control arms. By replacing the factory ball joint, this sliding ball joint allows for greater changes...

Able to change camber from +1.50° up to +3.0° these ball joints are perfect for lowered vehicles. For changes less than +1.5° check out our Adjustable Ball Joints. These ball joints have the best...

Adjust camber and caster for maximum handling and performance with our adjustable arms for Corvettes, Impalas and 'Tri-5' Bodies. Arms include a steel cross shaft with street style or race pivots and...