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QA1 GD501-10400A Front Pro Coil Double Adjustable Coilover Shock Kit GM 400 lb/in Tapered Pigtail

(Chevrolet Malibu 1964-67, Chevelle 1964-67, El Camino 1964-67, Bel Air 1956-57, Truck 1955-57, Two-Ten Series 1955-57; Pontiac GTO 1964-67 + 8 more models)

Part of: QA1 Pro Coil Double Adjustable Front Coilover Kit Tapered Pigtail

Other options in this family: QA1 Precision Products GD401-11300A QA1 Precision Products GD501-10500A QA1 Precision Products GD401-11250A QA1 Precision Products GD501-10550A

Manufacturer

Picture for manufacturer QA1 Precision Products

Part Number

GD501-10400A
4 reviews
Sale Price

$964.95

Estimated ship date Monday, November 23

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Product Details

The QA1 GD501-10400A Pro Coil Front Coilover Shock Kit is a bolt-in double adjustable coilover system engineered for GM muscle car applications. Featuring a lightweight billet aluminum shock body and a fully threaded design, this kit delivers exceptional tunability for both street and track use.

With truly independent compression and rebound adjustment, each knob offers 18 positions of tuning — providing up to 324 unique valving combinations. This level of fine-tuning allows you to optimize ride quality, handling response, or straight-line performance for virtually any driving condition. The 18-position adjustment knob is easily accessible by turning the steering wheel to full lock.

Kit Specifications:

  • Shock Type: Twin-tube, double adjustable aluminum
  • Compressed Length: 10.13 in.
  • Extended Length: 17.00 in.
  • Spring Length: 10 in.
  • Spring Rate: 400 lb/in.
  • Spring End Style: Tapered pigtail
  • Ride Height Adjustability: 0 to –2 in. via threaded spring seat
  • Mount Type: Stock upper mount (tapered pigtail lower)
  • Sold as a pair

Key Features:

  • Direct bolt-in installation — compatible with OE stamped steel or QA1 tubular control arms; no cutting or welding required
  • Fully threaded shock body for precise ride height adjustment
  • USA-made high-travel coil springs with reduced coil count and smaller wire diameter for faster suspension response and lower unsprung weight
  • Eligible for QA1's Limited Lifetime Warranty when registered at QA1.net/Warranty

Required Accessory: Spanner wrench P/N T114W or T115W (sold separately). Optional thrust bearing kit P/N 7888-109 also available.

The QA1 GD501-10400A is an ideal upgrade for any GM muscle car enthusiast seeking a direct bolt-in coilover solution with professional-grade adjustability right out of the box.

Products specifications

Fits

Chevrolet Malibu 1964-67, Chevelle 1964-67, El Camino 1964-67, Bel Air 1956-57, Truck 1955-57, Two-Ten Series 1955-57; Pontiac GTO 1964-67, LeMans 1964-67, Tempest 1964-67; Oldsmobile Cutlass 1964-67, 442 1964-67, F85 1964-67 + 4 more models

Adjustable Mounting Bracket Included

No

Adjustable Valving

Yes

Body Diameter (in)

2.000 in.

Coil-Over Kit Position

Front

Coil-Over Springs Included

Yes

Collapsed Length (in)

10.500 in.

Compressed Height

10.5

Crossmember Included

No

Extended Height

15

Extended Length (in)

15.000 in.

Gas Charged

No

Lower Mount

Tie bar

Number of Valving Selections

324

Quantity

Sold as a kit.

Recommended Front-End Weight

1,801-1,900 lbs

Ref No

43

Shock Body Finish

Clear anodized

Shock Body Material

Aluminum

Shocks Included

Yes

Spring Finish

Silver powdercoated

Spring Rate (lbs/in)

300 lbs./in.

Suspension Height Adjustment

0.0-2.0 in. lowered front

Threaded Adjustment Range

6.000 in.

Upper Mount

Stud

Welding Required

No

Prop 65

WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov

Title

QA1 Shock Absorber and Coil Spring Assembly GD501-10400A

Please remove from listing the items that are discontinued. I had to order to find out the manufacturer has discontinued the item over 1 year ago. Had my truck in the shop waiting for the item only to find out after a week the item is not available.

Great price and received item in a timely and in great condition. Will definitely shop here again!

Customer Care took care of my return and refunded the shipping after there was some order confusion. Thank you for taking care of everything!

My Superchips Cortex arrived within a few days of order and by far was the best price arround. Product arrived in perfect condition and worked as described. Great deal. Order #10984

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