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QA1 GD401-10500B - QA1 GM Pro Coil Double Adjustable Coil-Over Conversion Systems



QA1 GD401-10500B - QA1 GM Pro Coil Double Adjustable Coil-Over Conversion Systems

Part Number: 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
  • $635.99

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    QA1 GD401-10500B - QA1 GM Pro Coil Double Adjustable Coil-Over Conversion Systems Details

    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

    Features:
  • Truly independent compression and rebound adjustment.
  • 18 positions of rebound on one knob and 18 positions of compression on the other knob, providing 324 valving options.
  • One shock allows for the ultimate in fine-tuning for any application.

    Shock Mount Type:
  • Stud Type Upper Mount
  • T-Bar Type Lower Mount

    *Notes: Some front applications may require the lower a-arm to be dropped for installation. Body diameter may be too large to allow mounting from the bottom. Some control arm's shock openings may need to be enlarged to accept a QA1 shock.

    Stud mounts are measured to the shoulder of the stud. Add 13/16'' for installed compressed length per stud mount. Loops and t-bars are measured to the center of the loop. Lengths may vary slightly.

  • Specifications:

    Manufacturer's Part Number:
    GD401-10500B

    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

  • Does this fit your vehicle?

    Narrow Results

    1972 GMC SPRINT

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CUSTOM

    1972 BUICK SKYLARK

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 455
    • EngineType: V8

    1972 CHEVROLET EL CAMINO

    • CC: 5737
    • Liter: 5.7
    • SubModel: CUSTOM
    • EngineType: V8

    1970 PONTIAC TEMPEST

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • EngineType: L6

    1968 OLDSMOBILE VISTA CRUISER

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • CC: 5736
    • Liter: 5.7
    • SubModel: MALIBU
    • CUI: 350
    • EngineType: V8

    1971 CHEVROLET CHEVELLE

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8

    1972 BUICK SKYLARK

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8

    1968-1969 CHEVROLET EL CAMINO

    • CC: 6489
    • Liter: 6.5
    • SubModel: CUSTOM
    • CUI: 396
    • EngineType: V8

    1972 CHEVROLET EL CAMINO

    • Liter: 7.4
    • SubModel: CUSTOM
    • CUI: 454
    • EngineType: V8

    1972 OLDSMOBILE CUTLASS

    • EngineType: V8
    • SubModel: BASE

    1970-1971 CHEVROLET CHEVELLE

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1968-1969 CHEVROLET EL CAMINO

    • CC: 3769
    • Liter: 3.8
    • SubModel: CUSTOM
    • CUI: 230
    • EngineType: L6

    1972 GMC SPRINT

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • EngineType: L6
    • SubModel: GREENBRIER

    1972 GMC SPRINT

    • Liter: 7.4
    • EngineType: V8
    • SubModel: CUSTOM

    1972 CHEVROLET CHEVELLE

    • EngineType: L6
    • SubModel: CONCOURS ESTATE

    1968-1971 CHEVROLET CHEVELLE

    • EngineType: ALL
    • SubModel: CONCOURS

    1972 CHEVROLET CHEVELLE

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: NOMAD
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8

    1968 OLDSMOBILE CUTLASS

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE

    1972 GMC SPRINT

    • EngineType: L6
    • SubModel: CUSTOM

    1968-1969 PONTIAC TEMPEST

    • EngineType: ALL
    • SubModel: SAFARI

    1968-1969 CHEVROLET EL CAMINO

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1972 GMC SPRINT

    • CC: 6588
    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 402
    • EngineType: V8

    1971-1972 OLDSMOBILE CUTLASS

    • EngineType: ALL
    • SubModel: S

    1972 CHEVROLET EL CAMINO

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • EngineType: L6

    1971 GMC SPRINT

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1972 PONTIAC LEMANS

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1970-1972 CHEVROLET CHEVELLE

    • EngineType: ALL
    • SubModel: SS

    1972 PONTIAC LEMANS

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1969 OLDSMOBILE VISTA CRUISER

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE

    1968-1969 OLDSMOBILE CUTLASS

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8

    1968 PONTIAC TEMPEST

    • EngineType: L6
    • SubModel: BASE

    1968 CHEVROLET EL CAMINO

    • CC: 5031
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 307
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • CC: 7441
    • Liter: 7.4
    • SubModel: NOMAD
    • EngineType: V8

    1972 GMC SPRINT

    • CC: 6555
    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8

    1970-1972 CHEVROLET CHEVELLE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1968 OLDSMOBILE VISTA CRUISER

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • CC: 6555
    • Liter: 6.6
    • SubModel: NOMAD
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • CC: 5736
    • Liter: 5.7
    • SubModel: CONCOURS ESTATE
    • CUI: 350
    • EngineType: V8

    1968-1969 CHEVROLET EL CAMINO

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6

    1972 CHEVROLET EL CAMINO

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8

    1972 GMC SPRINT

    • CC: 6555
    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • SubModel: CONCOURS ESTATE
    • EngineType: V8

    1968-1969 BUICK SKYLARK

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8

    1972 OLDSMOBILE CUTLASS

    • EngineType: ALL
    • SubModel: CRUISER

    1970-1971 OLDSMOBILE VISTA CRUISER

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • EngineType: V8

    1972 OLDSMOBILE VISTA CRUISER

    • EngineType: V8
    • SubModel: BASE

    1968-1969 CHEVROLET EL CAMINO

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1968-1969 CHEVROLET EL CAMINO

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1972 CHEVROLET CHEVELLE

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • EngineType: V8

    1970-1972 CHEVROLET CHEVELLE

    • EngineType: L6
    • SubModel: BASE

    1972 PONTIAC LEMANS

    • EngineType: L6
    • SubModel: BASE

    1968 OLDSMOBILE CUTLASS

    • EngineType: ALL
    • SubModel: S

    1972 CHEVROLET EL CAMINO

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CUSTOM

    1972 CHEVROLET CHEVELLE

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1970 PONTIAC TEMPEST

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1968-1971 OLDSMOBILE CUTLASS

    • EngineType: L6
    • SubModel: BASE

    1968 CHEVROLET EL CAMINO

    • Liter: 5.4
    • EngineType: V8
    • SubModel: CUSTOM

    1968-1970 BUICK SKYLARK

    • EngineType: ALL
    • SubModel: CUSTOM

    1972 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • SubModel: CONCOURS
    • EngineType: V8

    1970 BUICK SKYLARK

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8

    1969 OLDSMOBILE 442

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE

    1972 BUICK SKYLARK

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: U
    • CUI: 455
    • EngineType: V8

    1968-1969 CHEVROLET EL CAMINO

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8

    1968-1970 BUICK SKYLARK

    • EngineType: L6
    • SubModel: BASE

    1968-1969 CHEVROLET EL CAMINO

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • CC: 7439
    • Liter: 7.4
    • Aspiration: N
    • SubModel: NOMAD
    • Engine Vin: W
    • CUI: 454
    • EngineType: V8

    1970 PONTIAC TEMPEST

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8

    1969 CHEVROLET EL CAMINO

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • Liter: 6.6
    • SubModel: GREENBRIER
    • CUI: 402
    • EngineType: V8

    1972 BUICK SKYLARK

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1970-1971 PONTIAC GTO

    • EngineType: ALL
    • SubModel: THE JUDGE

    1972 CHEVROLET CHEVELLE

    • CC: 6588
    • Liter: 6.6
    • Aspiration: N
    • SubModel: CONCOURS
    • Engine Vin: U
    • CUI: 402
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • CC: 6555
    • Liter: 6.6
    • SubModel: CONCOURS
    • EngineType: V8

    1968 OLDSMOBILE VISTA CRUISER

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • Liter: 6.6
    • SubModel: CONCOURS
    • CUI: 402
    • EngineType: V8

    1970-1971 OLDSMOBILE CUTLASS

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • CC: 7439
    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 454
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • Liter: 7.4
    • SubModel: NOMAD
    • CUI: 454
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • EngineType: L6
    • SubModel: NOMAD

    1972 CHEVROLET CHEVELLE

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1968-1969 CHEVROLET EL CAMINO

    • CC: 5736
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8

    1971-1972 GMC SPRINT

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • Liter: 5.7
    • SubModel: NOMAD
    • CUI: 350
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • EngineType: L6
    • SubModel: CONCOURS

    1970 CHEVROLET CHEVELLE

    • CC: 7439
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8

    1970 OLDSMOBILE CUTLASS

    • Liter: 7.5
    • EngineType: V8
    • SubModel: BASE

    1971 CHEVROLET CHEVELLE

    • Liter: 7.4
    • EngineType: V8
    • SubModel: BASE

    1972 GMC SPRINT

    • Liter: 5.7
    • EngineType: V8
    • SubModel: CUSTOM

    1968-1970 BUICK SKYLARK

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1971-1972 GMC SPRINT

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8

    1968-1969 CHEVROLET EL CAMINO

    • CC: 3769
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6

    1968-1969 CHEVROLET CHEVELLE

    • EngineType: ALL
    • SubModel: 300 DELUXE

    1971 OLDSMOBILE 442

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1969 PONTIAC TEMPEST

    • Liter: 7.0
    • SubModel: BASE
    • CUI: 428
    • EngineType: V8

    1971 OLDSMOBILE CUTLASS

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8

    1968-1969 CHEVROLET EL CAMINO

    • CC: 4097
    • Liter: 4.1
    • SubModel: CUSTOM
    • CUI: 250
    • EngineType: L6

    1968-1969 CHEVROLET EL CAMINO

    • CC: 5358
    • Liter: 5.3
    • SubModel: CUSTOM
    • CUI: 327
    • EngineType: V8

    1968 PONTIAC TEMPEST

    • EngineType: ALL
    • SubModel: CUSTOM
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