SPC Performance 97140 "g" Body Adj Control Arm Pair

The SPC Performance 97140 is a patented front upper adjustable control arm pair engineered specifically for GM G-Body platforms. Designed to maximize suspension tunability, these arms deliver independent camber and caster adjustment in a single package — giving your classic American muscle a modern, planted feel without sacrificing street manners.

A key design highlight is the ball studs that are 1/2" taller than stock, which effectively improves the camber curve for better tire contact and cornering performance. Both OE-length and 1/4" extended ball studs are included, allowing you to dial in your preferred suspension geometry or accommodate lowered ride heights. The ball joints are greaseable and fully rebuildable, ensuring long-term serviceability and durability.

Key Features:

• Patented adjustable design offers best-in-class adjustability and clearance — US Patent No. 9,751,370
• Camber adjustment: ±3.0°
• Caster adjustment: ±3.0°
• Ball studs 1/2" taller than stock to improve camber curve
• Includes both OE-length and 1/4" extended ball studs for geometry tuning
• Greaseable and rebuildable ball joints for lasting performance
• Sold as a pair (left and right)
• Limited lifetime manufacturer warranty

These upper control arms pair seamlessly with SPC's lower control arms and complementary suspension components to complete a full front suspension upgrade. Whether you're building a Pro Touring restomod, a dedicated track car, or a performance-oriented daily driver, the SPC 97140 provides the alignment flexibility needed to optimize handling, tire wear, and steering response.