QA1 52704 Lower Control Arm Kit, 67-70 Mustang

QA1

SKU
52704
$964.95
Estimated Shipping Date: Jun 11, 2026
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Give your classic Mustang modern handling and durability with QA1’s tubular lower control arm kit. Built as a true bolt-in upgrade, these arms replace your factory components with stronger, lighter construction and optimized geometry. Perfect for street performance or restomod builds, QA1 lower arms are a must-have foundation for a more stable, predictable, and fun-to-drive Mustang.

STRONGER DESIGN & IMPROVED GEOMETRY

OEM arms simply weren’t designed for today’s performance needs. QA1’s tubular construction reduces flex, increases rigidity, and enhances suspension geometry. The result is improved cornering stability, more responsive steering, and the confidence that your suspension can handle modern power levels.

EASY, BOLT-IN INSTALLATION

Installation doesn’t get much easier. Each arm is a direct bolt-in upgrade for your factory arms - no cutting, no welding, no modifications required. With ball joints and bushings pre-installed, these arms come ready to bolt on and go.

FEATURES & BENEFITS

  • Application-specific fit for ’67–’70 Ford Mustangs
  • Tubular construction for superior strength and reduced weight
  • One piece design eliminates separate strut rod
  • Optimized geometry improves handling and steering response
  • Pre-installed ball joints and bushings for quick installation
  • Durable black powder coat finish
  • Sold in pairs

FITMENT NOTES

  • Fits 1967–1970 Ford Mustangs
  • Replaces separate strut rod, will not work with OEM or other aftermarket strut rod
  • Works exclusively with QA1 sway bar 52803, will not work with OEM or other aftermarket sway bars
  • Compatible with factory and Proforged spindles
  • No welding required

Specifications

  • Upper or LowerLower

FREQUENTLY ASKED QUESTIONS (FAQ’s)

What are the benefits of QA1 tubular lower control arms on a 1967–1970 Mustang?

They strengthen the suspension, improve geometry, reduce flex, sharpen steering response, and provide a more stable and predictable driving feel compared to factory arms.

Do QA1 lower control arms fit factory Mustang spindles?

Yes. These arms are designed to work with both OEM spindles and aftermarket Proforged spindles.

Do QA1 tubular lower control arms require welding or modifications?

No. They are a direct bolt-in upgrade that come fully assembled with ball joints and bushings for an easy installation.

Are QA1 lower control arms compatible with coilovers?

Absolutely. They’re fully compatible with QA1 Pro Coil coilover systems and other suspension components like upper control arms and sway bars.

What suspension upgrades should I start with on a 1964–1970 Mustang?

Common starting upgrades include tubular control arms, coilovers, and sway bars. Lower control arms provide immediate improvements in geometry, strength, and steering feel.

How do QA1 lower control arms improve handling on a late-’60s Mustang?

They increase rigidity, help maintain suspension alignment under load, and make the car corner flatter with sharper, more responsive steering.