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    • UMI Performance Rear Control Arm Frame Braces — 1964-1972 GM A-Body | Bolt-On DOM Steel | 4029-B
    • UMI Performance Rear Control Arm Frame Braces — 1964-1972 GM A-Body | Bolt-On DOM Steel | 4029-B
    • UMI Performance Rear Control Arm Frame Braces — 1964-1972 GM A-Body | Bolt-On DOM Steel | 4029-B
    • UMI Performance Rear Control Arm Frame Braces — 1964-1972 GM A-Body | Bolt-On DOM Steel | 4029-B

    UMI Performance Rear Control Arm Frame Braces — 1964-1972 GM A-Body | Bolt-On DOM Steel | 4029-B

    Vendor: UMI Performance
    Part Number: 4029-B
    Regular Price $159.99

    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 UMI Performance rear control arm frame braces reinforce the upper and lower rear control arm mounts on GM A-Body vehicles. As power increases, the factory rear control arm mounts are prone to bending or breaking, and these tubular braces tie the upper and lower mounts together for added strength and improved driving performance. Manufactured from DOM steel and TIG welded, they are adjustable for a precise fit and bolt on using the included longer Grade 8 hardware, nuts and washers. They are made in the USA and finished in a durable black powder coat. Sold as a pair.

    Specifications:

    • DOM steel construction
    • Fully TIG welded
    • Adjustable for a precise fit
    • Ties upper and lower rear control arm mounts together
    • Includes longer Grade 8 hardware, nuts and washers
    • Durable black powder coat finish
    • Bolt-on installation
    • Sold as a pair
    • Made in the USA
    • Part number: 4029-B

    Vehicle Applications:

    • 1968 Buick Skylark
    • 1969 Buick Skylark
    • 1970 Buick Skylark
    • 1971 Buick Skylark
    • 1972 Buick Skylark
    • 1964 Buick Special
    • 1965 Buick Special
    • 1966 Buick Special
    • 1967 Buick Special
    • 1964 Buick Sportwagon
    • 1965 Buick Sportwagon
    • 1966 Buick Sportwagon
    • 1967 Buick Sportwagon
    • 1964 Chevrolet Chevelle
    • 1965 Chevrolet Chevelle
    • 1966 Chevrolet Chevelle
    • 1967 Chevrolet Chevelle
    • 1964 Chevrolet El Camino
    • 1965 Chevrolet El Camino
    • 1966 Chevrolet El Camino
    • 1967 Chevrolet El Camino
    • 1964 Oldsmobile 442
    • 1965 Oldsmobile 442
    • 1966 Oldsmobile 442
    • 1967 Oldsmobile 442
    • 1964 Oldsmobile Cutlass
    • 1965 Oldsmobile Cutlass
    • 1966 Oldsmobile Cutlass
    • 1967 Oldsmobile Cutlass
    • 1964 Oldsmobile Vista Cruiser
    • 1965 Oldsmobile Vista Cruiser
    • 1966 Oldsmobile Vista Cruiser
    • 1967 Oldsmobile Vista Cruiser
    • 1964 Pontiac GTO
    • 1965 Pontiac GTO
    • 1966 Pontiac GTO
    • 1967 Pontiac GTO
    • 1964 Pontiac Grand Prix
    • 1965 Pontiac Grand Prix
    • 1966 Pontiac Grand Prix
    • 1967 Pontiac Grand Prix
    • 1964 Pontiac LeMans
    • 1965 Pontiac LeMans
    • 1966 Pontiac LeMans
    • 1967 Pontiac LeMans
    • 1964 Pontiac Tempest
    • 1965 Pontiac Tempest
    • 1966 Pontiac Tempest
    • 1967 Pontiac Tempest

    FAQ

    What vehicles do these frame braces fit?

    Per the UMI fitment data they cover GM A-Body models including the Chevrolet Chevelle and El Camino, Pontiac GTO, LeMans and Tempest, Oldsmobile Cutlass, 442 and Vista Cruiser, and Buick Skylark, Special and Sportwagon. See the Vehicle Applications list for the exact years by model.

    What do these braces do?

    They tie the upper and lower rear control arm mounts together to reinforce the frame, reducing the chance of the mounts bending or breaking under higher power.

    Do they require cutting or modifying the floor?

    No. They bolt on and are adjustable for a precise fit, and the included longer Grade 8 hardware is used for installation.

    Are these frame braces made in the USA?

    Yes. UMI Performance manufactures these frame braces in the USA.

    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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