QA1 52700 Street Performance 2.0 Lower Control Arms for 1965-1970 GM B-Body

Vehicle Fitment

• 1965-1970 Chevrolet Bel Air (GM B-Body, Front Lower)
• 1965-1970 Chevrolet Biscayne (GM B-Body, Front Lower)
• 1966-1970 Chevrolet Caprice (GM B-Body, Front Lower)
• 1965-1970 Chevrolet Impala (GM B-Body, Front Lower)

Fitment Notes

• Front lower control arm pair for GM B-Body applications.
• Designed for use with QA1 Pro Coilover systems.
• These control arms require coilover suspension and do not work with factory-style coil springs.
• The factory front sway bar is not compatible; QA1 52824 is the specified replacement sway bar.
• Compatible with stock spindles and drop spindles.
• Compatible with factory or aftermarket disc brake systems.
• Stock-style sway bar links are required but are not included.
• 1965 Chevrolet Caprice is not included because the Caprice nameplate began in 1966.
• No 2026 application is applicable because these are 1965-1970 legacy GM B-Body applications.

Features

• Street Performance lower control arm kit designed for 1965-1970 GM B-Body vehicles.
• Tubular construction provides a lightweight alternative to the original stamped control arms.
• High-strength low-alloy steel construction provides strength with reduced weight.
• Polyurethane bushings provide low-friction movement while controlling deflection.
• Increased positive caster improves straight-line stability and tracking.
• Control-arm geometry helps improve handling and overall suspension response.
• Reduced unsprung weight improves suspension responsiveness.
• QA1 Ultimate ball joints provide low-friction operation and a rebuildable design.
• Integrated dust boots help protect the ball-joint assemblies.
• Adjustable steering stops and bump stops are incorporated into the control-arm design.
• Double-shear lower shock mounts are coilover-ready.
• Compatible with QA1 single-adjustable, double-adjustable, and MOD Series Pro Coilover shocks.
• Black powder-coated finish provides corrosion resistance and a durable appearance.
• Designed as a bolt-in installation using the stock control-arm mounting locations.

Specifications

• Brand: QA1
• Part Number: 52700
• Product Line: Street Performance 2.0 Tubular Control Arms
• Position: Front Lower
• Quantity: 2x control arms, left and right
• Application: GM B-Body
• Control Arm Style: Tubular
• Material: High-strength low-alloy steel
• Finish: Black powder coat
• Bushing Material: Polyurethane
• Ball Joint: QA1 Ultimate, included
• Ball Joint Design: Rebuildable, low-friction
• Adjustable: No
• Hardware: Included
• Coilover Compatible: Yes
• Factory Coil Spring Compatible: No
• Spindle Compatibility: Stock and drop spindles
• Brake System Compatibility: Factory or aftermarket disc brakes
• Front Sway Bar Requirement: QA1 52824

Included Components

• 2x Front lower tubular control arms
• 2x QA1 Ultimate ball joints
• 4x Polyurethane control-arm bushings
• 1x Installation hardware set

Product Description

QA1 52700 is a Street Performance front lower control arm kit designed for 1965-1970 GM B-Body vehicles. The pair of tubular lower control arms provides a lightweight, stronger alternative to the original components while improving suspension geometry, handling response, and straight-line stability. The arms are designed for Chevrolet Bel Air, Biscayne, Caprice, and Impala applications within the specified model years.

The control arms use high-strength low-alloy steel construction, polyurethane bushings, and QA1 Ultimate low-friction ball joints. Increased positive caster helps the vehicle track straighter and reduces unwanted steering wander, while reduced unsprung weight contributes to improved suspension response. The integrated double-shear lower mounts are designed for QA1 Pro Coilover systems and are compatible with QA1 single-adjustable, double-adjustable, and MOD Series Pro Coilover shocks.

QA1 52700 is intended as a bolt-in upgrade using the factory control-arm mounting locations and works with stock or drop spindles and factory or aftermarket disc-brake systems. These control arms require coilovers and cannot be used with factory-style coil springs. The factory front sway bar is also incompatible; QA1 specifies sway bar 52824 for use with these arms. The kit is sold as a left- and right-hand pair.