QA1 52518 Pro-Touring Upper Control Arms GM F-Body A-Body X-Body B-Body

The QA1 52518 Pro-Touring Upper Control Arm Kit delivers exceptional handling performance for autocross and road course applications. Designed specifically for 1970-1981 GM F-Body, 1973-1977 A-Body, 1975-1979 X-Body, and 1978-1996 B-Body vehicles, these premium control arms represent a significant upgrade over factory stamped steel components.

Advanced Ball Joint Technology:

• QA1 Ultra Low Friction ball joints eliminate flex and provide bind-free movement
• 1-inch longer upper ball joint stud improves camber gain for optimal tire contact patch
• Adjustable and rebuildable design allows tuning with different stud lengths
• Integrated dust boots provide long-term, low-maintenance service

Lightweight, High-Strength Construction:

• High-strength, low-alloy steel tubing with optimized thin-wall construction
• Billet aluminum cross shafts reduce weight without sacrificing durability
• Each arm weighs less than 7 lbs—among the lightest available
• Robotically welded and powder-coated in durable black finish

Performance-Driven Design:

• Increased positive caster design (adds 3-4 degrees when used with matching lowers)
• Adds 0.5 to 1 degree of negative camber for superior cornering grip
• Ultra-low friction composite bushings eliminate flex for bind-free performance
• Double-shear lower mounts configured for QA1 Pro Coil Systems
• Compatible with OE or drop spindles

Complete Kit Includes: Pair of upper control arms with integrated ball joints, composite bushings, bump stops, and all required mounting hardware. Note: Must be used with coil-over systems; not compatible with factory springs. Sway bar links not included (uses OE-style links).