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    • UMI Performance 1in Solid Rear Sway Bar — 1964-1972 GM A-Body | 4140 Chromoly, Red | 4034-R
    • UMI Performance 1in Solid Rear Sway Bar — 1964-1972 GM A-Body | 4140 Chromoly, Red | 4034-R
    • UMI Performance 1in Solid Rear Sway Bar — 1964-1972 GM A-Body | 4140 Chromoly, Red | 4034-R
    • UMI Performance 1in Solid Rear Sway Bar — 1964-1972 GM A-Body | 4140 Chromoly, Red | 4034-R

    UMI Performance 1in Solid Rear Sway Bar — 1964-1972 GM A-Body | 4140 Chromoly, Red | 4034-R

    Vendor: UMI Performance
    Part Number: 4034-R
    Regular Price $169.99

    In Stock

    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 1 inch solid rear sway bar is built to reduce body roll and understeer and to increase cornering capability for a more balanced suspension. It also helps keep the vehicle level and straight during hard launches. The bar is manufactured from 1 inch solid 4140 chromoly steel, heat treated and formed as one piece for maximum strength. The hot forming and heat treating process helps the bar hold its shape and memory longer than a cold bent bar. It is finished in red powder coat and is made in the USA.

    Specifications:

    • Rear sway bar
    • 1 inch solid diameter
    • 4140 chromoly steel, heat treated
    • One-piece hot-formed construction
    • Red powder coat finish
    • Includes mounting hardware
    • Sold each
    • Made in the USA
    • Part number: 4034-R

    Vehicle Applications:

    • 1970 Buick GS
    • 1971 Buick GS
    • 1972 Buick GS
    • 1968 Buick GS 350
    • 1969 Buick GS 350
    • 1968 Buick GS 400
    • 1969 Buick GS 400
    • 1970 Buick GS 455
    • 1971 Buick GS 455
    • 1972 Buick GS 455
    • 1965 Buick Gran Sport
    • 1966 Buick Gran Sport
    • 1967 Buick Gran Sport
    • 1964 Buick Skylark
    • 1965 Buick Skylark
    • 1966 Buick Skylark
    • 1967 Buick Skylark
    • 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
    • 1968 Buick Special
    • 1969 Buick Special
    • 1964 Buick Sportwagon
    • 1965 Buick Sportwagon
    • 1966 Buick Sportwagon
    • 1967 Buick Sportwagon
    • 1968 Buick Sportwagon
    • 1969 Buick Sportwagon
    • 1970 Buick Sportwagon
    • 1971 Buick Sportwagon
    • 1972 Buick Sportwagon
    • 1964 Chevrolet Chevelle
    • 1965 Chevrolet Chevelle
    • 1966 Chevrolet Chevelle
    • 1967 Chevrolet Chevelle
    • 1968 Chevrolet Chevelle
    • 1969 Chevrolet Chevelle
    • 1970 Chevrolet Chevelle
    • 1971 Chevrolet Chevelle
    • 1972 Chevrolet Chevelle
    • 1964 Chevrolet El Camino
    • 1965 Chevrolet El Camino
    • 1966 Chevrolet El Camino
    • 1967 Chevrolet El Camino
    • 1968 Chevrolet El Camino
    • 1969 Chevrolet El Camino
    • 1970 Chevrolet El Camino
    • 1971 Chevrolet El Camino
    • 1972 Chevrolet El Camino
    • 1970 Chevrolet Monte Carlo
    • 1971 Chevrolet Monte Carlo
    • 1972 Chevrolet Monte Carlo
    • 1971 GMC Sprint
    • 1972 GMC Sprint
    • 1964 Oldsmobile 442
    • 1965 Oldsmobile 442
    • 1966 Oldsmobile 442
    • 1967 Oldsmobile 442
    • 1968 Oldsmobile 442
    • 1969 Oldsmobile 442
    • 1970 Oldsmobile 442
    • 1971 Oldsmobile 442
    • 1964 Oldsmobile Cutlass
    • 1965 Oldsmobile Cutlass
    • 1966 Oldsmobile Cutlass
    • 1967 Oldsmobile Cutlass
    • 1968 Oldsmobile Cutlass
    • 1969 Oldsmobile Cutlass
    • 1970 Oldsmobile Cutlass
    • 1971 Oldsmobile Cutlass
    • 1972 Oldsmobile Cutlass
    • 1964 Oldsmobile Vista Cruiser
    • 1965 Oldsmobile Vista Cruiser
    • 1966 Oldsmobile Vista Cruiser
    • 1967 Oldsmobile Vista Cruiser
    • 1968 Oldsmobile Vista Cruiser
    • 1969 Oldsmobile Vista Cruiser
    • 1970 Oldsmobile Vista Cruiser
    • 1971 Oldsmobile Vista Cruiser
    • 1972 Oldsmobile Vista Cruiser
    • 1964 Pontiac GTO
    • 1965 Pontiac GTO
    • 1966 Pontiac GTO
    • 1967 Pontiac GTO
    • 1968 Pontiac GTO
    • 1969 Pontiac GTO
    • 1970 Pontiac GTO
    • 1971 Pontiac GTO
    • 1972 Pontiac GTO
    • 1969 Pontiac Grand Prix
    • 1970 Pontiac Grand Prix
    • 1971 Pontiac Grand Prix
    • 1972 Pontiac Grand Prix
    • 1964 Pontiac LeMans
    • 1965 Pontiac LeMans
    • 1966 Pontiac LeMans
    • 1967 Pontiac LeMans
    • 1968 Pontiac LeMans
    • 1969 Pontiac LeMans
    • 1970 Pontiac LeMans
    • 1971 Pontiac LeMans
    • 1972 Pontiac LeMans
    • 1964 Pontiac Tempest
    • 1965 Pontiac Tempest
    • 1966 Pontiac Tempest
    • 1967 Pontiac Tempest
    • 1968 Pontiac Tempest
    • 1969 Pontiac Tempest
    • 1970 Pontiac Tempest

    FAQ

    What vehicles does the UMI 4034 rear sway bar fit?

    It fits 1964 to 1972 GM A-body cars, including the Chevrolet Chevelle and El Camino, Pontiac GTO, LeMans and Tempest, Oldsmobile 442 and Cutlass, and Buick Skylark and Special. See the vehicle applications list for every year and model.

    What is the bar made from?

    It is made from 1 inch solid 4140 chromoly steel that is heat treated and formed as one piece. The hot forming and heat treating process helps the bar keep its shape and memory longer than a cold bent bar.

    Does it include mounting hardware?

    Yes. The rear sway bar ships with the mounting hardware needed for installation and is sold as each.

    What is the difference between the 4034-B and 4034-R?

    They are the same rear sway bar. The 4034-B has a black powder coat finish and the 4034-R has a red powder coat finish.

    Is this sway bar made in the USA?

    Yes. UMI Performance manufactures this sway bar 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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