QA1 64-70 Ford Mustang 7/8in Rear Sway Bar Kit
Fits 1964–1970 Ford Mustang
All 9 applications- Authorized dealerGenuine QA1 parts, sourced direct
- 30-day returnsSee the return policy
- Diesel techs on the line908-223-9744, call or text
- Secure checkout
Balance the handling of your classic Mustang with QA1’s 0.875” (7/8”) tubular 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 tubular 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.
- Application-specific fit for 1964–1970 Ford Mustangs with QA1 rear coilover conversion 4 link
- 0.875” (7/8”) tubular construction for lighter weight and added strength
- Designed to complement QA1 front sway bars and suspension upgrades
- Enhances traction and stability under acceleration and cornering
- Reduces body roll and improves overall cornering balance
- Includes polyurethane bushings and hardware
- Durable black powder coat finish
- Brand
- QA1
- Part number
- 52900
- SKU
- QAP52900
- UPC
- 806990234599
- Category
- Sway Bars
- Weight
- 19.2 lb
- Shipping
- Ground, ships in 1 to 2 business days
- 1964–1970Ford Mustang
| Years | Make | Model | Submodel |
|---|---|---|---|
| 1964–1970 | Ford | Mustang | Base |
| 1969–1970 | Ford | Mustang | Boss 302 |
| 1969–1970 | Ford | Mustang | Boss 429 |
| 1970 | Ford | Mustang | Grande |
| 1970 | Ford | Mustang | Mach 1 |
| 1965–1970 | Ford | Mustang | Shelby GT-350 |
| 1966 | Ford | Mustang | Shelby GT-350H |
| 1967–1970 | Ford | Mustang | Shelby GT-500 |
| 1968 | Ford | Mustang | Shelby GT-500KR |
Applications are the manufacturer's published fitment for this part number.
Not sure it fits? Call 908-223-9744 or text us the year, model and engine. We confirm fitment before you order.
- Shipping
- In-stock parts ship in 1 to 2 business days. Tracking is emailed as soon as the label prints.
- Returns
- 30-day returns on unused parts in the original packaging. Return policy.
- Warning
- This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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Good to know
Questions, answered straight.
If it is not here, call or text the counter. Real people, real answers.
Fitment
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Will this fit my truck?
The Fits section at the top of the page lists the manufacturer's applications for this exact part. If your year, make and model is not there, or you are not sure, text us a photo of what you are replacing with your year and engine and we will confirm it before you order.
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What if I order the wrong part?
Call or text us before it ships and we will swap it. After delivery you have 30 days to return it in new, uninstalled condition. The return policy has the restocking details.
Shipping
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When will it ship?
In-stock parts usually ship within 1 to 2 business days from warehouses across the USA. The stock line under the options tells you the status of the part you are looking at. Large items ship LTL freight and we call to schedule delivery.
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Why did I only get part of my order?
We ship from multiple warehouses, so an order with several items can arrive in more than one box. Tracking for each shipment is emailed as it goes out. Full details in the shipping policy.
Returns and warranty
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What is the return policy?
30 days from delivery, in new and uninstalled condition, with a restocking fee. Everything is spelled out in the Returns & Refund Policy.
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How do warranty claims work?
We are an authorized dealer, so the manufacturer's warranty applies to every part we sell. Call or text us with your order number and we handle the claim with the brand for you.
Paying
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Can I pay over time?
Yes. Shop Pay installments are offered at checkout on qualifying orders, and the monthly estimate shows right under the price.
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What is a core deposit?
Some remanufactured parts, like injectors and turbos, carry a refundable core deposit. It is shown on the product page when it applies and refunded when your old part comes back to us.
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Why buy here
A diesel shop that sells parts, not a website that sells boxes.
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We run what we sell
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Real techs on the phone
Call or text 908-223-9744 and you get a diesel tech, not a script.
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Authorized dealer
Genuine parts straight from the manufacturer, with the factory warranty behind them.
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Fast from stock
Most in-stock parts ship in 1 to 2 business days from warehouses across the USA.
Authorized dealer for 140+ brands
All brands- 7+ Years in business
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The shop floor, Nazareth, PAFull Send Diesel, Nazareth, PA
A team of diesel people, not a call center.
Full Send Diesel is a shop full of techs, builders and parts people in Nazareth, Pennsylvania. When you call or text, you reach someone who works on these trucks and knows the parts.
Not sure what you need? Send a photo of what you are replacing with your year and engine. We will point you to the right part, confirm it is in stock, and get it moving.
Mon–Fri, 8am–4pm ET. After hours, text or email and we answer first thing in the morning.


























