QA1 52764 Street Performance 2.0 Lower Control Arms 1978-1988 GM G-Body Coilover

Vehicle Fitment

• 1978-1988 Chevrolet Malibu, El Camino, Monte Carlo (GM G-Body)
• 1978-1988 Buick Regal, Century (GM G-Body)
• 1978-1988 Oldsmobile Cutlass Supreme, Cutlass Calais (GM G-Body)
• 1978-1988 Pontiac Grand Prix, LeMans, Bonneville (GM G-Body)

Fitment Notes

• Not compatible with OE-type coil springs - must be used with a coilover system (QA1 Pro Coil Systems recommended)
• Double-shear lower mounts are coilover-ready and compatible with QA1 single adjustable, double adjustable, and MOD Series Pro coilover shocks
• Compatible with factory or aftermarket disc brake systems
• Utilizes OE-style sway bar links (not included); mounts in OE location - no cutting, fabricating, or welding required
• A professional front-end alignment is required after installation
• When used together with QA1 upper control arms: adds 3-4 degrees of caster and 0.5-1 degree of negative camber; when used independently, approximately half those values

Features

• Street Performance 2.0 Series - ideal for street driving, cruising, and long-distance use with improved handling geometry
• Polyurethane bushings isolate road noise for a smoother ride while remaining stiff enough to resist deflection for improved handling
• QA1 Ultimate Ball Joint with integrated housing - stronger than OEM, rebuildable for long-term service with integrated dust boot
• Increased positive caster design improves straight-line stability and reduces front-end darting
• High-strength low alloy steel with billet aluminum cross shafts - under 10 lbs. each for reduced unsprung weight
• Double-shear lower mounts are coilover-ready for a clean, adapter-free installation
• Robotically welded; black powder coated for a clean, professional appearance
• Made in the USA at QA1's Lakeville, Minnesota facility

Specifications

• Part Number: 52764
• Type: Street Performance 2.0 Front Lower Control Arms
• Application: 1978-1988 GM G-Body
• Construction: High-Strength Low Alloy Steel (.109 wall HSLA Tubing) with Billet Aluminum Cross Shafts
• Bushing Type: Polyurethane
• Ball Joint: QA1 Ultimate (Integrated Housing, Rebuildable, Integrated Dust Boot)
• Lower Mount: Double-Shear, Coilover-Ready (Stamped Steel)
• Caster Gain (with QA1 uppers): 3-4 degrees
• Camber Gain (with QA1 uppers): 0.5-1 degree negative
• Weight: Under 10 lbs. each
• Finish: Black Powder Coat
• Quantity: Pair (2 arms)
• Hardware: Included (bump stops, adjustable steering stops, all mounting hardware)
• Made in the USA

Included Components

• 2x QA1 Street Performance 2.0 Front Lower Control Arms (Black Powder Coated)
• 2x Lower Bump Stops
• 2x Adjustable Steering Stops
• 1x Complete Hardware Kit (all required mounting hardware)

Product Description

The QA1 52764 Street Performance 2.0 Front Lower Control Arms are engineered for 1978-1988 GM G-Body vehicles including the Monte Carlo, Cutlass Supreme, Buick Regal, El Camino, and Pontiac Grand Prix. Built from high-strength low alloy steel tubing with billet aluminum cross shafts, each arm weighs under 10 lbs. - significantly lighter than factory stamped steel arms - reducing unsprung weight for improved handling response. Polyurethane bushings replace factory rubber units to resist deflection while isolating road noise, striking a balance between ride comfort and handling precision well suited for street and long-distance driving.

The QA1 Ultimate Ball Joint features an integrated housing, rebuildable design, and integrated dust boot for long-term, low-maintenance service. Double-shear lower mounts are coilover-ready and compatible with QA1 single adjustable, double adjustable, and MOD Series Pro Coil shocks - no adapters required. When paired with QA1 upper control arms, these lowers deliver 3-4 degrees of added caster and 0.5-1 degree of negative camber for noticeably improved suspension geometry. These arms bolt into the factory location with no cutting or welding, and a coilover system is required - OE-type springs are not compatible.