QA1 52900 Rear Sway Bar, 64-70 Mustang

QA1

SKU
52900
$348.95
Estimated Shipping Date: Jun 11, 2026
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Balance the handling of your classic Mustang with QA1’s solid 0.875” (7/8”) rear sway bar, engineered for 1964–1970 models. Purpose built for QA1 rear coilover conversions and designed to match the performance of QA1’s front sway bars and suspension systems, this rear bar reduces body roll, improves traction, and helps your Mustang corner with confidence. A bolt on upgrade to the QA1 4 link kit for unlocking even more potential.

BALANCED HANDLING & STABILITY

Adding a rear sway bar is one of the most effective ways to improve cornering performance on a classic Mustang. QA1’s solid 0.875” sway bar increases roll stiffness at the rear axle, reducing understeer and keeping your car more level in the turns. The result is sharper handling, more predictable grip, and a Mustang that feels planted and controlled.

BOLT-ON INSTALLATION

This kit is designed for straightforward installation, bolting directly to the QA1 4 link crossmember with no cutting or welding required. It includes polyurethane bushings and heavy-duty mounting hardware for a complete, ready-to-install solution.

FEATURES & BENEFITS

  • Application-specific fit for 1964–1970 Ford Mustangs with QA1 rear coilover conversion 4 link
  • Solid 0.875” (7/8”) construction for lighter weight and added strength
  • Reduces body roll and improves overall cornering balance
  • Enhances traction and stability under acceleration and cornering
  • Designed to complement QA1 front sway bars and suspension upgrades
  • Includes polyurethane bushings and hardware
  • Durable black powder coat finish

FITMENT NOTES

  • Fits 1964–1970 Ford Mustangs
  • Works exclusively with QA1 rear coilover conversion 4 link kits – will not work with factory leaf springs or other manufacturers suspensions
  • Complements QA1 front sway bars for a balanced setup

Specifications

  • Vehicle PositionRear

FREQUENTLY ASKED QUESTIONS (FAQ’s)

What size is the QA1 rear sway bar for 1964–1970 Mustangs?

The QA1 52900 rear sway bar measures 0.875” (7/8”) in diameter, making it much stronger and stiffer than the factory bar.

What does a rear sway bar do on a classic Mustang?

A rear sway bar reduces body roll, increases traction, and balances handling when paired with a front sway bar. It makes the car corner flatter and feel more stable.

Is the QA1 52900 rear sway bar a bolt-on for 1964–1970 Mustangs?

Yes. It bolts directly to the QA1 coilover conversion crossmember. All hardware and bushings are included.

Can I use the QA1 rear sway bar with factory front suspension?

Yes, but the best results come when paired with a QA1 front sway bar, coilovers, and tubular control arms for a complete system.

Will a rear sway bar change ride quality?

QA1’s tubular design improves cornering without adding harshness, so ride quality for normal street driving remains comfortable.