QA1 GD507-10550C Double Adjustable Pro-Coil Front Kit 10" Spring 550 lb/in

Regular price: $964.95
Regular price: ~~$1,069.01~~
Sale price: $964.95

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In Stock: 8

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Product Specification:

SKU:QAPGD507-10550C

MPN: GD507-10550C

UPC: 806990136626

Weight: 24.5 lb

Inventory: 8

Type: Coilovers

Vehicle Fitment

Front-end coil-over conversion - GM production cars/trucks using front coil-spring systems
Suitable for a wide range of GM models (review manufacturer fitment chart for exact years/trim)

Features

Double-adjustable valving with independent compression & rebound control (324 settings)
Includes 10" free-height coil springs rated at 550 lb/in for front-suspension applications
Ride-height adjustable (approximately 0" to -2") via threaded body for stance control
Bolt-in installation compatible with factory stamped or QA1 tubular control arms
100 % dyno tested, serialized, rebuildable and serviceable by QA1 authorised centres
Made in the USA with anodised aluminium shock bodies for reduced unsprung mass and improved response
Optimised for restoration, performance street, autocross and track use in GM-based platforms
Backed by QA1's Limited Lifetime Warranty (upon registration)

Specifications

Part Number: GD507-10550C
Kit Type: Pro-Coil Front Conversion (Double Adjustable)
Spring Free Length: 10.00 inches
Spring Rate: 550 lb/in
Valving: Independent compression & rebound adjustment
Ride-Height Adjustment Range: approx. 0" to -2" from stock front height
Included Shock Mount Type: Front coil-spring conversion compatible
Sold as: Kit (left + right, springs + shocks + hardware)

Included Components

2x QA1 Pro-Coil double-adjustable front shocks (left & right)
2x 10" free-height coil springs rated at 550 lb/in each
Mounting hardware & spring seats for front conversion
Installation instructions & warranty registration documentation

Product Description

The QA1 GD507-10550C Pro-Coil Front Conversion Kit is engineered for GM vehicles with front coil-spring suspensions where owners seek performance and stance control. By integrating 10" free-height springs rated at 550 lb/in and double-adjustable shocks, this kit provides both ride-height adjustability and fine-tuning of damping characteristics for street, track or show use.

Installation is designed to be bolt-in when using either factory or QA1 tubular control arms, retaining proper suspension geometry while offering up to ~2" of front drop. The independent compression and rebound adjustment allow drivers to dial their car from comfortable cruising to aggressive handling without a full rebuild.

This front-conversion kit is ideal for GM restoration builds, performance street platforms, and seasoned racers who demand adjustability, quality and durability. Because it is a conversion system rather than a direct drop-in shock, ensure your vehicle's front mounting points, spring seats and travel clearances align with the 10" free-height and 550 lb/in rate. Fitment should be verified with QA1's official chart for your model year, trim and front-end geometry.