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QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 400lbs/in - Flat Large - Aluminum, product image 1
QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 400lbs/in - Flat Large - Aluminum, product image 2
QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 400lbs/in - Flat Large - Aluminum, product image 3
QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 400lbs/in - Flat Large - Aluminum, product image 4
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QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 400lbs/in - Flat Large - Aluminum

QA1
QAPGS401-10400C
806990062154
Coilovers
1 Units In Stock - Ships Next Business Day
$ 830.83 $ 749.95
$ 749.95

A GM Pro Front Coil-Over System, Single Adj., 10in x 400lbs/in, Flat Large, Aluminum

QA1 part number GS401-10400C is a GM Pro front coil-over system with single adjustable damping, paired with a 10in x 400lbs/in flat large spring, in an aluminum shock body.

This is a chassis system sized by mounting configuration, spring rate, and travel rather than a specific vehicle beyond the stated GM Pro front application; confirm mounting dimensions against the chassis before ordering.

Key Features

  • GM Pro front coil-over system
  • Single adjustable damping
  • 10in x 400lbs/in flat large spring included
  • Aluminum shock body

Fitment

Years Make Model Notes
n.a. n.a. n.a. Universal chassis hardware component.

Universal; confirm mounting dimensions against the application before ordering.

Specifications

Detail Value
Brand QA1
Application GM Pro front
Adjustability Single Adj.
Spring size 10in x 400lbs/in, flat large
Shock body material Aluminum

What's Included

  • One QA1 GM Pro front coil-over shock, single adjustable, aluminum body.
  • One 10in x 400lbs/in flat large coilover spring.

About QA1

QA1 manufactures suspension and chassis hardware to defined dimensional specifications, letting builders match components by size and thread rather than by a single vehicle-specific part number.

FAQ

What spring rate is included with this system?

400lbs/in, in a 10in x flat large configuration.

Is the damping adjustable?

Yes, single adjustable.

What shock body material is used?

Aluminum.

What application is this coil-over system designed for?

GM Pro front mounting.

Is the spring rate fixed once installed?

QA1 offers different spring rates separately; verify if a different rate is needed for the application.

Does this system include mounting hardware?

Confirm QA1's exact packing list for this part number; verify mounting hardware separately if not included.

Can the spring be swapped for a different rate later?

Yes, QA1 offers additional coilover springs separately sized to fit this shock body; confirm compatible spring dimensions before swapping.

Is this system vehicle-specific?

It is designed for GM Pro front mounting configurations; confirm the chassis uses a compatible mount before ordering.

Installation Instructions

QA1 does not publish a vehicle-specific torque value for this system; use the chassis or kit manufacturer's mounting specification.

  1. Confirm the chassis uses a GM Pro front-compatible coil-over mount before ordering.
  2. Support the vehicle and remove the original front shock/spring assembly per the chassis manufacturer's service information.
  3. Set the single adjuster to the desired damping setting before installation.
  4. Mount the coil-over system per the chassis design.
  5. Torque mounting fasteners to the chassis or kit manufacturer's specification.
  6. Set ride height per the chassis specification, then cycle the suspension through its travel and check clearance before returning to service.

Request For Information

Have questions about ? Fill out the form below and we'll get back to you by the next business day.
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