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QA1 GM Pro Coil Double Adjustable Coil-Over Conversion Systems


QA1
QA1 GM Pro Coil Double Adjustable Coil-Over Conversion Systems

Do you have a high-performance street/strip GM? The QA1 Double Adjustable Pro Coil System is the most versatile direct bolt-in front suspension on the market. No cutting or welding... these coil-over systems are designed to work with stock suspension and stock control arms (mounting bolt/nut assembly modification may be required).

Take control of your vehicle's ride height, and get the stance you want with double adjustable valving that allows simple switching between one type of driving to another. Unlike many other shocks, the valving between compression and rebound can be adjusted independently. 18 positions of rebound on one knob and 18 positions of compression on the other knob, providing 324 valving options. Made in the USA.

The Pro Coil System Includes:
  • Two Proma Star double adjustable coil-over shocks
  • Two Specially Designed Conical Springs
  • All Mounting Hardware

    Easy Bolt-In Installation - Minimal modifications to be made. Remove the existing shocks and springs and the QA1 Pro Coil System bolts right back in.

    Ride Height Adjustable - Threaded aluminum shock body allows ride height adjustment.

    Specially Designed Conical Springs - This spring is designed so that the lower end sets on the coil-over shock and the upper end sets in the original spring bucket in the frame. This allows for the use of a longer and lighter spring for more stored energy, offering increased weight transfer. Greater durability is also achieved by locating the spring pressure in the frame and not on a single stud.

    Highlights
  • Systems include shocks, springs (rates below), and mounting hardware
  • Easy, Bolt-In Installation - Stock Location Using Stock Mount
  • Ride Height Adjustable
  • Remote Ready
  • 100% Dyno Tested and Serialized
  • Rebuildable & Revalvable by QA1 or QA1-Authorized Service Centers
  • Some replacement shocks sold individually


    GM Pro Coil Coil Over Conversion Kits are also available in Single Adjustable and Drag Race "R" Series





    Spring Style ''A''
    Pigtail End
    3.50'' Upper ID
    2.50'' Lower ID

    Spring Style ''B''
    Flat End
    3.50'' Upper ID
    2.50'' Lower ID

    Spring Style ''C''
    Flat End
    4.10'' Upper ID
    2.50'' Lower ID


  • 47 Products Page: 1 2 ... |  Next Results per Page:
    Spring Style "A"
  • 1967-1969 Camaro / Firebird
  • 1968-1974 Nova / Chevy II
  • 1973-1974 Omega

  • 122-GD401-10350A
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 1701-1800 lbs. Front End Weight
  • 350 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-10400A
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 1801-1900 lbs. Front End Weight
  • 400 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-10450A
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 1901-2000 lbs. Front End Weight
  • 450 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-10500A
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 2001-2100 lbs. Front End Weight
  • 500 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-10550A
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 2101-2300 lbs. Front End Weight
  • 550 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-11250A
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 11'' Spring Free Length
  • 1500-1600 lbs. Front End Weight
  • 250 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-11300A
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 11'' Spring Free Length
  • 1601-1700 lbs. Front End Weight
  • 300 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14
    Spring Style "B"
  • 1968-1972 Chevelle / Malibu / El Camino
  • 1970-1972 Monte Carlo
  • 1968-1972 Skylark (including GS)
  • 1968-1972 Cutlass / 442 / F85
  • 1968-1972 GTO / Tempest / LeMans

  • 122-GD401-10350B
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 1701-1800 lbs. Front End Weight
  • 350 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-10400B
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 1801-1900 lbs. Front End Weight
  • 400 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-10450B
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 1901-2000 lbs. Front End Weight
  • 450 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-10500B
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 2001-2100 lbs. Front End Weight
  • 500 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-10550B
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 2101-2300 lbs. Front End Weight
  • 550 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-11250B
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 11'' Spring Free Length
  • 1500-1600 lbs. Front End Weight
  • 250 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-11300B
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 11'' Spring Free Length
  • 1601-1700 lbs. Front End Weight
  • 300 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14
    Spring Style "C"
  • 1970-1981 Camaro / Firebird

  • 122-GD501-10350C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 10.5'' Compressed / 15'' Extended Shock Height
  • 10'' Spring Free Length
  • 1701-1800 lbs. Front End Weight
  • 350 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD501-10400C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 10.5'' Compressed / 15'' Extended Shock Height
  • 10'' Spring Free Length
  • 1801-1900 lbs. Front End Weight
  • 400 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD501-10450C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 10.5'' Compressed / 15'' Extended Shock Height
  • 10'' Spring Free Length
  • 1901-2000 lbs. Front End Weight
  • 450 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD501-10500C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 10.5'' Compressed / 15'' Extended Shock Height
  • 10'' Spring Free Length
  • 2001-2100 lbs. Front End Weight
  • 500 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD501-10550C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 10.5'' Compressed / 15'' Extended Shock Height
  • 10'' Spring Free Length
  • 2101-2300 lbs. Front End Weight
  • 550 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD501-11250C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 10.5'' Compressed / 15'' Extended Shock Height
  • 11'' Spring Free Length
  • 1500-1600 lbs. Front End Weight
  • 250 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD501-11300C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 10.5'' Compressed / 15'' Extended Shock Height
  • 11'' Spring Free Length
  • 1601-1700 lbs. Front End Weight
  • 300 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14
    Spring Style "C"
  • 1973-1983 Chevelle / Malibu
  • 1975-1979 Nova / Omega / Skylark
  • 1973-87 El Camino / Regal / Cutlass Supreme / Grand Prix
  • 1973-1988 Monte Carlo
  • 1984-1987 Grand National
  • 1974-1977 GTO / Ventura
  • 1973-77 LeMans
  • 1982-2004 S10 Pickup

  • 122-GD401-10350C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 1700-1801 lbs. Front End Weight
  • 350 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-10400C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 1800-1901 lbs. Front End Weight
  • 400 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-10450C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 1900-2001 lbs. Front End Weight
  • 450 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-10500C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 2000-2101 lbs. Front End Weight
  • 500 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-10550C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 10'' Spring Free Length
  • 2101-2300 lbs. Front End Weight
  • 550 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-11250C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 11'' Spring Free Length
  • 1500-1600 lbs. Front End Weight
  • 250 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD401-11300C
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 9'' Compressed / 12.8'' Extended Shock Height
  • 11'' Spring Free Length
  • 1600-1701 lbs. Front End Weight
  • 300 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14
    Spring Style ''A''
  • 1955-1957 Chevy Car
  • 1964-1967 Chevelle / Malibu / El Camino
  • 1964-1967 Skylark (including GS)
  • 1964-1967 Cutlass / 442 / F85
  • 1964-1967 GTO / Cutlass / LeMans

  • 122-GD501-10350A
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 10.5'' Compressed / 15'' Extended Shock Height
  • 10'' Spring Free Length
  • 1701-1800 lbs. Front End Weight
  • 350 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    122-GD501-10400A
    Pro Coil Front Coil-Over System
  • Double Adjustable Shock
  • 10.5'' Compressed / 15'' Extended Shock Height
  • 10'' Spring Free Length
  • 1801-1900 lbs. Front End Weight
  • 400 lbs/in. Spring Rate
  • $616.99
    Order Today Ships 12/31/14

    47 Products Page: 1 2 ... |  Next Results per Page: