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    Sale!New!

    QA1 Pro Coil Front Coil-Over System Single Adjustable | 1964-1966 Ford Mustang | MS401-10350C

    Vendor: QA1
    Part Number: MS401-10350C
    Save $96.50
    Sale Price $894.95 Regular Price $991.45

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    The QA1 Pro Coil front coil-over system modernizes the front suspension of 1964-1966 Ford Mustangs with a bolt-in single adjustable design. It pairs a lightweight billet aluminum coil-over shock with a 10" coil spring rated at 350 lb/in, and a single knob adjusts rebound and compression together across 18 settings for street or performance driving. The fully threaded shock body sets ride height from factory height down to 2 inches lower with no cutting or welding, and the system works with factory or QA1 tubular control arms. Each shock is 100 percent dyno tested and serialized and made in the USA.

    Specifications:

    • Lightweight billet aluminum coil-over shock
    • Fully threaded shock body for ride height adjustment
    • Single adjustable shock, 18 settings of simultaneous rebound and compression adjustment
    • 10" coil-over spring rated at 350 lb/in
    • 100 percent dyno tested and serialized
    • Bolt-in installation
    • Made in the USA
    • Sold as a pair
    • Part number: MS401-10350C

    Vehicle Applications:

    • 1964 Ford Mustang
    • 1965 Ford Mustang
    • 1966 Ford Mustang

    Installation Instructions

    FAQ

    What does this QA1 Pro Coil system fit?

    This system is an application-specific front coil-over kit for 1964-1966 Ford Mustangs. See the Vehicle Applications list for the exact years and models covered.

    Is this a single or double adjustable coil-over?

    It uses single adjustable shocks, which adjust rebound and compression together through 18 settings with one knob.

    How much can ride height be lowered?

    The fully threaded shock body allows ride height from factory height down to about 2 inches lower.

    Does installation require cutting or welding?

    No. The Pro Coil system is a bolt-in design that installs with basic hand tools and works with factory or QA1 tubular control arms.

    What spring rate is included?

    This kit includes 10" coil springs with a 350 lb/in spring rate and is sold as a pair.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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