{"product_id":"qa1-gm-pro-coil-system-double-adjustable-bjgm-gd401-10500c","title":"QA1 GM Pro Coil System Double Adjustable | 1973-2006 GM A\/G-Body, S10 \u0026 C1500 | GD401-10500C","description":"\u003cp\u003eThis 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 500 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: GM Pro Coil System (coil-over shock and spring)\u003c\/li\u003e\n\u003cli\u003eValving: independent compression and rebound double adjustable\u003c\/li\u003e\n\u003cli\u003eBody: lightweight billet aluminum, fully threaded for ride height adjustment\u003c\/li\u003e\n\u003cli\u003eSpring: 10 in high travel, 500 rate, large tapered flat end\u003c\/li\u003e\n\u003cli\u003eCompressed length: 8.63 in\u003c\/li\u003e\n\u003cli\u003eExtended length: 12.88 in\u003c\/li\u003e\n\u003cli\u003eSold in pairs\u003c\/li\u003e\n\u003cli\u003eMade in the USA, dyno tested and serialized\u003c\/li\u003e\n\u003cli\u003ePart number: GD401-10500C\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1975 Buick Apollo\u003c\/li\u003e\n\u003cli\u003e1973 Buick Century\u003c\/li\u003e\n\u003cli\u003e1974 Buick Century\u003c\/li\u003e\n\u003cli\u003e1975 Buick Century\u003c\/li\u003e\n\u003cli\u003e1976 Buick Century\u003c\/li\u003e\n\u003cli\u003e1977 Buick Century\u003c\/li\u003e\n\u003cli\u003e1973 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1974 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1975 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1976 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1977 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1978 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1979 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1980 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1981 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1982 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1983 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1984 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1985 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1986 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1987 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1988 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1975 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1976 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1977 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1978 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1979 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1990 Chevrolet C1500\u003c\/li\u003e\n\u003cli\u003e1991 Chevrolet C1500\u003c\/li\u003e\n\u003cli\u003e1992 Chevrolet C1500\u003c\/li\u003e\n\u003cli\u003e1993 Chevrolet C1500\u003c\/li\u003e\n\u003cli\u003e1994 Chevrolet C1500\u003c\/li\u003e\n\u003cli\u003e1995 Chevrolet C1500\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet C1500\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet C1500\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet C1500\u003c\/li\u003e\n\u003cli\u003e1973 Chevrolet Chevelle\u003c\/li\u003e\n\u003cli\u003e1973 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1974 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1975 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1976 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1977 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1978 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1979 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1980 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1981 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1982 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1983 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1984 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1985 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1986 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1987 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1973 Chevrolet Laguna\u003c\/li\u003e\n\u003cli\u003e1974 Chevrolet Laguna\u003c\/li\u003e\n\u003cli\u003e1975 Chevrolet Laguna\u003c\/li\u003e\n\u003cli\u003e1976 Chevrolet Laguna\u003c\/li\u003e\n\u003cli\u003e1973 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1974 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1975 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1976 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1977 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1978 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1979 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1980 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1981 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1982 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1973 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1974 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1975 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1976 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1977 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1978 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1979 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1980 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1981 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1982 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1983 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1984 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1985 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1986 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1987 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1988 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1975 Chevrolet Nova\u003c\/li\u003e\n\u003cli\u003e1976 Chevrolet Nova\u003c\/li\u003e\n\u003cli\u003e1977 Chevrolet Nova\u003c\/li\u003e\n\u003cli\u003e1978 Chevrolet Nova\u003c\/li\u003e\n\u003cli\u003e1979 Chevrolet Nova\u003c\/li\u003e\n\u003cli\u003e1982 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1983 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1984 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1985 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1986 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1987 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1988 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1989 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1990 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1991 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1992 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1993 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1994 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1995 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e2003 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e2004 Chevrolet S10\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003e2003 Chevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003e2004 Chevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003e2005 Chevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003e2006 Chevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003e1988 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1989 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1990 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1991 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1992 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1993 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1994 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1995 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1996 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1997 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1998 GMC C1500\u003c\/li\u003e\n\u003cli\u003e1981 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1982 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1983 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1984 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1985 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1986 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1987 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1982 GMC S15\u003c\/li\u003e\n\u003cli\u003e1983 GMC S15\u003c\/li\u003e\n\u003cli\u003e1984 GMC S15\u003c\/li\u003e\n\u003cli\u003e1985 GMC S15\u003c\/li\u003e\n\u003cli\u003e1986 GMC S15\u003c\/li\u003e\n\u003cli\u003e1987 GMC S15\u003c\/li\u003e\n\u003cli\u003e1988 GMC S15\u003c\/li\u003e\n\u003cli\u003e1989 GMC S15\u003c\/li\u003e\n\u003cli\u003e1990 GMC S15\u003c\/li\u003e\n\u003cli\u003e1991 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e1992 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e1993 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e1994 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e1995 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e1996 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e1997 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e1998 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e1999 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e2000 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e2001 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e2002 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e2003 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e2004 GMC Sonoma\u003c\/li\u003e\n\u003cli\u003e1973 GMC Sprint\u003c\/li\u003e\n\u003cli\u003e1974 GMC Sprint\u003c\/li\u003e\n\u003cli\u003e1975 GMC Sprint\u003c\/li\u003e\n\u003cli\u003e1976 GMC Sprint\u003c\/li\u003e\n\u003cli\u003e1977 GMC Sprint\u003c\/li\u003e\n\u003cli\u003e1973 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1974 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1975 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1976 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1977 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1975 Oldsmobile Omega\u003c\/li\u003e\n\u003cli\u003e1976 Oldsmobile Omega\u003c\/li\u003e\n\u003cli\u003e1977 Oldsmobile Omega\u003c\/li\u003e\n\u003cli\u003e1978 Oldsmobile Omega\u003c\/li\u003e\n\u003cli\u003e1979 Oldsmobile Omega\u003c\/li\u003e\n\u003cli\u003e1978 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1979 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1980 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1981 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1982 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1983 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1984 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1985 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1986 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1987 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1982 Pontiac Grand LeMans\u003c\/li\u003e\n\u003cli\u003e1983 Pontiac Grand LeMans\u003c\/li\u003e\n\u003cli\u003e1973 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1974 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1975 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1976 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1977 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1978 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1979 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1980 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1981 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1982 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1983 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1984 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1985 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1986 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1987 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1973 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1974 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1975 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1976 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1977 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1978 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1979 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1980 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1981 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1977 Pontiac Phoenix\u003c\/li\u003e\n\u003cli\u003e1978 Pontiac Phoenix\u003c\/li\u003e\n\u003cli\u003e1979 Pontiac Phoenix\u003c\/li\u003e\n\u003cli\u003e1975 Pontiac Ventura\u003c\/li\u003e\n\u003cli\u003e1976 Pontiac Ventura\u003c\/li\u003e\n\u003cli\u003e1977 Pontiac Ventura\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat is included with the GD401-10500C Pro Coil System?\u003c\/h5\u003e\u003cp\u003eIt includes QA1 billet aluminum double adjustable coil-over shocks with 10 inch 500 rate high travel springs and is sold in pairs.\u003c\/p\u003e\u003ch5\u003eWhat valving does this system use?\u003c\/h5\u003e\u003cp\u003eIt uses independent compression and rebound double adjustable valving, so compression and rebound can be tuned separately.\u003c\/p\u003e\u003ch5\u003eIs the ride height adjustable?\u003c\/h5\u003e\u003cp\u003eYes. The fully threaded shock body lets ride height be adjusted for the desired stance and corner weighting.\u003c\/p\u003e\u003ch5\u003eWhat vehicles does this kit fit?\u003c\/h5\u003e\u003cp\u003eIt fits the GM applications listed in the vehicle applications section above.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is included with the GD401-10500C Pro Coil System?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It includes QA1 billet aluminum double adjustable coil-over shocks with 10 inch 500 rate high travel springs and is sold in pairs.\"}}, {\"@type\": \"Question\", \"name\": \"What valving does this system use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It uses independent compression and rebound double adjustable valving, so compression and rebound can be tuned separately.\"}}, {\"@type\": \"Question\", \"name\": \"Is the ride height adjustable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The fully threaded shock body lets ride height be adjusted for the desired stance and corner weighting.\"}}, {\"@type\": \"Question\", \"name\": \"What vehicles does this kit fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It fits the GM applications listed in the vehicle applications section above.\"}}]}\u003c\/script\u003e","brand":"QA1","offers":[{"title":"Default Title","offer_id":42664487714864,"sku":"BJGM_GD401-10500C","price":964.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/63a61b14ff495_0e13bb4d-b904-4de2-a979-4cd322d83d30.jpg?v=1766455896","url":"https:\/\/berryperformancesales.com\/products\/qa1-gm-pro-coil-system-double-adjustable-bjgm-gd401-10500c","provider":"Berry Performance Sales","version":"1.0","type":"link"}