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    Sale!

    QA1 GM Pro Coil System Double Adjustable | 1973-2006 GM A/G-Body, S10 & C1500 | GD401-10350C

    Vendor: QA1
    Part Number: GD401-10350C
    Save $32.04
    $964.95 $996.99

    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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    This QA1 GM Pro Coil System delivers fully adjustable ride height and valving control. It uses independent compression and rebound double adjustable valving in a lightweight billet aluminum body with a fully threaded body for ride height adjustment. The kit includes a 10 inch high travel spring rated at 350 with a large tapered flat end. It has a compressed length of 8.63 inches and an extended length of 12.88 inches. These systems are sold in pairs, are 100 percent dyno tested, serialized and made in the USA, and are used in drag racing, street performance, autocross, road racing and street rod applications.

    Specifications:

    • Type: GM Pro Coil System (coil-over shock and spring)
    • Valving: independent compression and rebound double adjustable
    • Body: lightweight billet aluminum, fully threaded for ride height adjustment
    • Spring: 10 in high travel, 350 rate, large tapered flat end
    • Compressed length: 8.63 in
    • Extended length: 12.88 in
    • Sold in pairs
    • Made in the USA, dyno tested and serialized
    • Part number: GD401-10350C

    Vehicle Applications:

    • 1975 Buick Apollo
    • 1973 Buick Century
    • 1974 Buick Century
    • 1975 Buick Century
    • 1976 Buick Century
    • 1977 Buick Century
    • 1973 Buick Regal
    • 1974 Buick Regal
    • 1975 Buick Regal
    • 1976 Buick Regal
    • 1977 Buick Regal
    • 1978 Buick Regal
    • 1979 Buick Regal
    • 1980 Buick Regal
    • 1981 Buick Regal
    • 1982 Buick Regal
    • 1983 Buick Regal
    • 1984 Buick Regal
    • 1985 Buick Regal
    • 1986 Buick Regal
    • 1987 Buick Regal
    • 1988 Buick Regal
    • 1975 Buick Skylark
    • 1976 Buick Skylark
    • 1977 Buick Skylark
    • 1978 Buick Skylark
    • 1979 Buick Skylark
    • 1990 Chevrolet C1500
    • 1991 Chevrolet C1500
    • 1992 Chevrolet C1500
    • 1993 Chevrolet C1500
    • 1994 Chevrolet C1500
    • 1995 Chevrolet C1500
    • 1996 Chevrolet C1500
    • 1997 Chevrolet C1500
    • 1998 Chevrolet C1500
    • 1973 Chevrolet Chevelle
    • 1973 Chevrolet El Camino
    • 1974 Chevrolet El Camino
    • 1975 Chevrolet El Camino
    • 1976 Chevrolet El Camino
    • 1977 Chevrolet El Camino
    • 1978 Chevrolet El Camino
    • 1979 Chevrolet El Camino
    • 1980 Chevrolet El Camino
    • 1981 Chevrolet El Camino
    • 1982 Chevrolet El Camino
    • 1983 Chevrolet El Camino
    • 1984 Chevrolet El Camino
    • 1985 Chevrolet El Camino
    • 1986 Chevrolet El Camino
    • 1987 Chevrolet El Camino
    • 1973 Chevrolet Laguna
    • 1974 Chevrolet Laguna
    • 1975 Chevrolet Laguna
    • 1976 Chevrolet Laguna
    • 1973 Chevrolet Malibu
    • 1974 Chevrolet Malibu
    • 1975 Chevrolet Malibu
    • 1976 Chevrolet Malibu
    • 1977 Chevrolet Malibu
    • 1978 Chevrolet Malibu
    • 1979 Chevrolet Malibu
    • 1980 Chevrolet Malibu
    • 1981 Chevrolet Malibu
    • 1982 Chevrolet Malibu
    • 1973 Chevrolet Monte Carlo
    • 1974 Chevrolet Monte Carlo
    • 1975 Chevrolet Monte Carlo
    • 1976 Chevrolet Monte Carlo
    • 1977 Chevrolet Monte Carlo
    • 1978 Chevrolet Monte Carlo
    • 1979 Chevrolet Monte Carlo
    • 1980 Chevrolet Monte Carlo
    • 1981 Chevrolet Monte Carlo
    • 1982 Chevrolet Monte Carlo
    • 1983 Chevrolet Monte Carlo
    • 1984 Chevrolet Monte Carlo
    • 1985 Chevrolet Monte Carlo
    • 1986 Chevrolet Monte Carlo
    • 1987 Chevrolet Monte Carlo
    • 1988 Chevrolet Monte Carlo
    • 1975 Chevrolet Nova
    • 1976 Chevrolet Nova
    • 1977 Chevrolet Nova
    • 1978 Chevrolet Nova
    • 1979 Chevrolet Nova
    • 1982 Chevrolet S10
    • 1983 Chevrolet S10
    • 1984 Chevrolet S10
    • 1985 Chevrolet S10
    • 1986 Chevrolet S10
    • 1987 Chevrolet S10
    • 1988 Chevrolet S10
    • 1989 Chevrolet S10
    • 1990 Chevrolet S10
    • 1991 Chevrolet S10
    • 1992 Chevrolet S10
    • 1993 Chevrolet S10
    • 1994 Chevrolet S10
    • 1995 Chevrolet S10
    • 1996 Chevrolet S10
    • 1997 Chevrolet S10
    • 1998 Chevrolet S10
    • 1999 Chevrolet S10
    • 2000 Chevrolet S10
    • 2001 Chevrolet S10
    • 2002 Chevrolet S10
    • 2003 Chevrolet S10
    • 2004 Chevrolet S10
    • 1999 Chevrolet Silverado 1500
    • 2000 Chevrolet Silverado 1500
    • 2001 Chevrolet Silverado 1500
    • 2002 Chevrolet Silverado 1500
    • 2003 Chevrolet Silverado 1500
    • 2004 Chevrolet Silverado 1500
    • 2005 Chevrolet Silverado 1500
    • 2006 Chevrolet Silverado 1500
    • 1988 GMC C1500
    • 1989 GMC C1500
    • 1990 GMC C1500
    • 1991 GMC C1500
    • 1992 GMC C1500
    • 1993 GMC C1500
    • 1994 GMC C1500
    • 1995 GMC C1500
    • 1996 GMC C1500
    • 1997 GMC C1500
    • 1998 GMC C1500
    • 1981 GMC Caballero
    • 1982 GMC Caballero
    • 1983 GMC Caballero
    • 1984 GMC Caballero
    • 1985 GMC Caballero
    • 1986 GMC Caballero
    • 1987 GMC Caballero
    • 1982 GMC S15
    • 1983 GMC S15
    • 1984 GMC S15
    • 1985 GMC S15
    • 1986 GMC S15
    • 1987 GMC S15
    • 1988 GMC S15
    • 1989 GMC S15
    • 1990 GMC S15
    • 1991 GMC Sonoma
    • 1992 GMC Sonoma
    • 1993 GMC Sonoma
    • 1994 GMC Sonoma
    • 1995 GMC Sonoma
    • 1996 GMC Sonoma
    • 1997 GMC Sonoma
    • 1998 GMC Sonoma
    • 1999 GMC Sonoma
    • 2000 GMC Sonoma
    • 2001 GMC Sonoma
    • 2002 GMC Sonoma
    • 2003 GMC Sonoma
    • 2004 GMC Sonoma
    • 1973 GMC Sprint
    • 1974 GMC Sprint
    • 1975 GMC Sprint
    • 1976 GMC Sprint
    • 1977 GMC Sprint
    • 1973 Oldsmobile Cutlass Supreme
    • 1974 Oldsmobile Cutlass Supreme
    • 1975 Oldsmobile Cutlass Supreme
    • 1976 Oldsmobile Cutlass Supreme
    • 1977 Oldsmobile Cutlass Supreme
    • 1975 Oldsmobile Omega
    • 1976 Oldsmobile Omega
    • 1977 Oldsmobile Omega
    • 1978 Oldsmobile Omega
    • 1979 Oldsmobile Omega
    • 1978 Pontiac Bonneville
    • 1979 Pontiac Bonneville
    • 1980 Pontiac Bonneville
    • 1981 Pontiac Bonneville
    • 1982 Pontiac Bonneville
    • 1983 Pontiac Bonneville
    • 1984 Pontiac Bonneville
    • 1985 Pontiac Bonneville
    • 1986 Pontiac Bonneville
    • 1987 Pontiac Bonneville
    • 1982 Pontiac Grand LeMans
    • 1983 Pontiac Grand LeMans
    • 1973 Pontiac Grand Prix
    • 1974 Pontiac Grand Prix
    • 1975 Pontiac Grand Prix
    • 1976 Pontiac Grand Prix
    • 1977 Pontiac Grand Prix
    • 1978 Pontiac Grand Prix
    • 1979 Pontiac Grand Prix
    • 1980 Pontiac Grand Prix
    • 1981 Pontiac Grand Prix
    • 1982 Pontiac Grand Prix
    • 1983 Pontiac Grand Prix
    • 1984 Pontiac Grand Prix
    • 1985 Pontiac Grand Prix
    • 1986 Pontiac Grand Prix
    • 1987 Pontiac Grand Prix
    • 1973 Pontiac LeMans
    • 1974 Pontiac LeMans
    • 1975 Pontiac LeMans
    • 1976 Pontiac LeMans
    • 1977 Pontiac LeMans
    • 1978 Pontiac LeMans
    • 1979 Pontiac LeMans
    • 1980 Pontiac LeMans
    • 1981 Pontiac LeMans
    • 1977 Pontiac Phoenix
    • 1978 Pontiac Phoenix
    • 1979 Pontiac Phoenix
    • 1975 Pontiac Ventura
    • 1976 Pontiac Ventura
    • 1977 Pontiac Ventura

    FAQ

    What is included with the GD401-10350C Pro Coil System?

    It includes QA1 billet aluminum double adjustable coil-over shocks with 10 inch 350 rate high travel springs and is sold in pairs.

    What valving does this system use?

    It uses independent compression and rebound double adjustable valving, so compression and rebound can be tuned separately.

    Is the ride height adjustable?

    Yes. The fully threaded shock body lets ride height be adjusted for the desired stance and corner weighting.

    What vehicles does this kit fit?

    It fits the GM applications listed in the vehicle applications section above.

    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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