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Qa1

QA1 GM Pro Front Coil-Over Shock Absorber - Double Adj. - Stock Mount - 9.625in/14.5in - Aluminum

SKU: QAPGD508

Coilover Shocks and Struts

QAP Coil Shocks - Pro Coil...

Qa1

QA1 GM Pro Front Coil-Over Shock Absorber - Double Adj. - Stock Mount - 9.625in/14.5in - Aluminum

SKU: QAPGD508

Coilover Shocks and Struts

QAP Coil Shocks - Pro Coil...

A$814.19
Last Available from MFR. LAST ONE AVAILABLE from the manufacturer's distribution centre. Once sold, this item may not be immediately available again. The dispatch timeframe shown is an estimate based on historical orders for this part and is dependent on the manufacturer releasing the final available unit.

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Description

QA1 GM Pro Front Coil-Over Shock Absorber - Double Adj. - Stock Mount - 9.625in/14.5in - Aluminum

Additional Information

Front Pro Coil double adjustable stock mount shock. Coil-over shock only. Compressed length of 9.63" and extended length of 14.5". No spring included.

Part Type

Coilover

Product Overview

QA1's coil-over shock for your 1963-1965 Buick Riviera offers fully adjustable ride height and valving control. Pick your spring rate and adjustability to fit your driving style, adjust the valving to match and you are on your way. They also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling. Adjustable Coil-Over Features:, Available in independent compression and rebound double adjustable and simultaneous compression and rebound adjustable, Lightweight Billet Aluminum Coil-Over Design, Easy, Bolt-In Installation, Ride Height Adjustable, 100% Dyno Tested and Serialized, Serviceable and Rebuildable by QA1 Authorized Service Centers, Made in the USA, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs.

Data: v4.2 - Upd: 2026-11-09 12:07:31

Features

  • Achieve the ultimate balance of ride quality and performance handling with independent tuning of rebound and compression valving.
  • Easy bolt-in installation that works with your factory or upgraded QA1 tubular control arms.
  • Limited Lifetime Warranty for peace of mind.
  • Proudly made in the USA
  • Up to 2 of ride height adjustment allows you to dial in the perfect stance.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Active or Passive Suspension:Passive
Adjustable Compression:Yes
Adjustable Rebound:Yes
Adjustable Ride Height:Yes
Brand:QA1
Coil Spring Included:No
Coil Spring Insulator(s) Included:No
Cylinder Color:Silver
Cylinder Material:Aluminum
Description:QA1 GM Pro Front Coil-Over Shock Absorber - Double Adj. - Stock Mount - 9.625in/14.5in - Aluminum
Dust Shield Included:No
Grade Type:Performance
Internal Construction Type:Dual Tube
Manufacturer Part Number:GD508
Part Number:qapGD508
Remote Reservoir:No
Self-Leveling:No
Title:QA1 Shock Absorber and Coil Spring Assembly GD508
UPC:806990143976

Product Downloads

# Document Type Download
1. Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 09:17:42

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Qa1
StreetFX SKU qapGD508
SFX Item ID 4093537
Accounting SKU qap-GD508
Manufacturer SKU GD508
Manufacturer UPC 806990143976
Alternative References GD508, QA1-GD508

Coilover Shocks and Struts, Pro Coil, Double-adjustable, Twin-tube, Aluminum, Silver, Stud Upper/T-bar Lower Mounts, 14.50 in. Extended Length, Pair

QA1 Pro Coil shocks and struts are designed to change over your OEM suspension to an adjustable coilover design. They include two high performance shocks or struts and all necessary mounting hardware. QA1 Pro Coil shocks and struts are available for street use in single or double-adjustable styles and also come in a full drag race version built only for the race track.

Product Attributes
BrandQA1
Manufacturer's Part NumberGD508
Part TypeCoilover Shocks and Struts
Product LineQA1 Pro Coil Shocks and Struts
UPC806990143976
Coilover Shock TypeDouble-adjustable
Shock Body MaterialAluminum
Shock Body FinishSilver
Adjustable ValvingYes
Number of Valving Selections324
Extended Length (in.)14.50
Collapsed Length (in.)9.63
Upper MountStud
Lower MountT-bar
Internal DesignTwin-tube
Gas ChargedNo
Body Diameter (in.)2.000
Coilover Springs IncludedNo
Recommended Spring Diameter (in.)2.50 in.
Adjustable Mounting Bracket IncludedNo
Hardware IncludedYes
QuantitySold as a pair.

Manufacturer Attributes
Title QA1 Shock Absorber and Coil Spring Assembly GD508
Manufacturer Part Number GD508
UPC 806990143976
Brand QA1
Manufacturer Designation Shock GM C-O D-Adj 9.63 14.50 Stud/3.63" T-Bar
Product Class Suspension Shock Absorber and Coil Spring Assembly
Construction/Type Front Pro Coil double adjustable stock mount shock. Coil-over shock only. Compressed length of 9.63" and extended length of 14.5". No spring included.
Product Outline Up to 2 of ride height adjustment allows you to dial in the perfect stance.
Achieve the ultimate balance of ride quality and performance handling with independent tuning of rebound and compression valving.
Easy bolt-in installation that works with your factory or upgraded QA1 tubular control arms.
Limited Lifetime Warranty for peace of mind.
Proudly made in the USA
Vehicle Brief QA1 Pro Coil Shock
Market Description QA1's coil-over shock for your 1963-1965 Buick Riviera offers fully adjustable ride height and valving control. Pick your spring rate and adjustability to fit your driving style, adjust the valving to match and you are on your way. They also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling. Adjustable Coil-Over Features:, Available in independent compression and rebound double adjustable and simultaneous compression and rebound adjustable, Lightweight Billet Aluminum Coil-Over Design, Easy, Bolt-In Installation, Ride Height Adjustable, 100% Dyno Tested and Serialized, Serviceable and Rebuildable by QA1 Authorized Service Centers, Made in the USA, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs.

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