What kind of adjustability does this coil-over system offer?

This QA1 Pro Rear System features single adjustable damping. This means you can adjust both compression and rebound simultaneously with a single knob. This allows you to fine-tune your suspension to match your driving style and track conditions.

Can these shocks be rebuilt?

Yes, these shocks are revalveable and rebuildable by the QA1 factory or QA1 authorized service centers. This can extend the service life of your shocks and allow you to customize the valving to your specific needs.

What size are the axle tubes these coil-overs fit?

These coil-overs are designed to fit 3" diameter axle tubes. Make sure to measure your axle tube diameter before ordering to ensure proper fitment. Welding is required for installation.

QA1

QA1 Pro Rear Weld-In Coil-Over System - Single Adj. - 12in x 100/200lbs/in - 3in Tube - Aluminum

Name: QA1 Pro Rear Weld-In Coil-Over System - Single Adj. - 12in x 100/200lbs/in - 3in Tube - Aluminum
Brand: QA1
Price: 867.79 USD
Availability: InStock

$867.79

Weld-in coil-over kit for 3" axle tubes. Single adjustable damping and ride height adjustment.

Key Features

Lightweight aluminum — reduces unsprung weight
Ride height adjustable — fine-tune your stance
Spring mounting hardware included — everything you need for installation
100% dyno tested and serialized — verified performance
Revalveable and rebuildable — extend service life
Fits 3" diameter axle tubes

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

Upgrade your rear end with QA1's Pro-Rear System. Available in double adjustable, single adjustable and ride sensitive valving non-adjustable options,each adjustment has been carefully defined to provide the ideal horse curve to maximize performance. With evenly spaced valving changes throughout the adjustment range, there are no jumps when adjusting between any two clicks. These Pro-Rear Systems are commonly used in drag racing, street performance and street rod applications. Available in Simultaneous Compresion and Rebound Single Adjustable (DS), Independent Compression & Rebound Double Adjustable (DD) or Ride Sensitive Non-Adjustable (ALN), Coil-Over, Lightweight Aluminum, Ride Height Adjustable, Spring Mounting Hardware Included, 100% Dyno Tested and Serialized, Revalveable and Rebuildable by the QA1 Factory or QA1 Authorized Service Centers, Precision Machined Aluminum Piston with PTFE Piston Band, 5/8" Centerless Ground, Hard Chrome Plated, Solid Piston Rod, Three Step Sealing System, Available to Fit 3" or 3.25" Diameter Axle Tubes, Made in the USA, , Kit includes:, (2) Proma Star Shocks or Aluma Matic Shocks, (2) Linear or Variable Rate Springs, All Mounting Hardware.