79-04 Mustang Rear Pro Coil System

* Required Fields

Mustang Rear Coil-Over Conversion KitsMustang Rear Coil-Over Conversion Kits
Click to enlarge and zoom

More Views

  • Mustang Rear Coil-Over Conversion Kits
  • Mustang Rear Coil-Over Conversion Kits - MOD™ Series
  • Mustang Rear Coil-Over Conversion Kits - Double Adjustable
  • Mustang Rear Coil-Over Conversion Kits - Single Adjustable

1979-2004 Mustang Rear Coil-Over Conversion Kits

QA1 now offers bolt-in Rear Coil-Over Conversion Kits for 1979-2004 Mustangs. These kits include specially designed USA made mounting brackets and single, double, or MOD™ Series adjustable aluminum shocks specific to Mustangs, springs and all necessary hardware.

Single adjustable shocks provide 18 positions of simultaneous rebound and compression adjustment while QA1’s double adjustable shocks provide 18 positions of compression adjustment and 18 positions of rebound adjustment, for a total of 324 possible valving combinations. MOD™ Series shocks also feature a double adjustable design but include adjustable low-speed bleed as well for fully independent control over compression and rebound characteristics.

These shocks also utilize a fully threaded body allowing for ride height adjustability. Multiple spring rate options are also available and have been successfully tested in various applications, from casual street driving to hard core race applications.

With our highly popular adjustable struts and the addition of the Rear Coil-Over Conversion Kit, you can now get a complete suspension makeover for both ends of the vehicle.

  • Made in the USA
  • Easy, Bolt-In Installation
  • No Cutting or Welding
  • Threaded Body
  • 100% Dyno Tested and Serialized
  • Rebuildable and Revalveable by the QA1 Factory or QA1 Authorized Service Centers


Additional MOD™ Series Features:

  • Features QuickTune™ technology - modular valve packs that allow for completely revalving the shock without having to remove it from the car!
  • 24 click independent compression and rebound adjustment with low-speed bleed
  • Large solid piston (with blow-off valve) for improved driver feel and control with up to 1,600 lb. force
  • High-speed valving adjustment (coarse adjustment)—relates to shock operation during impact events, like hitting a pothole or curb 
  • Low-speed valving (fine-tune adjustments)—adjusts ride quality and weight transfer on corner entry/exit; more bleed for softer feel and less bleed for stiffer feel
  • Indexable base eyelet—multiple mounting position to optimize knob access and provide more mounting flexibility
  • Thrust bearings included


Pro Coil Systems include:

  • 2 Shocks
  • 2 Springs
  • All Mounting Brackets and Hardware

Installation instructions for 79-04 Mustang Front Pro Coil System

MOD™ Series Shock Installation and Quick Tuning Guide

Spanner wrenches and thrust bearing kits sold seperately

The chart below is a general guideline for selecting spring rates for QA1's Rear Pro Coil Shock Systems for 79-04 Mustangs. Spring rates may vary depending on applications, usage and personal preference.

95 110 130

QA1's Rear Coil-Over Conversion Kits


Assembling a QA1 Coil-Over Shock Kit


Change Ride Height & Valving on Single Adjustable Coil-Over Shocks

Part Numbers
Ride FeelingMOD™ Series AdjustableDouble AdjustableSingle Adjustable
Soft RCK52431 RCK52343 RCK52347
Medium RCK52432 RCK52344 RCK52348
Firm RCK52433 RCK52345 RCK52349

You may also be interested in the following product(s)

Ford Bump Steer Kits

Ford Bump Steer Kits

Starting at: $169.55

Ford K-Members

Ford K-Members

Starting at: $89.95

Ford Sway Bars

Ford Sway Bars

Starting at: $211.95

Ford Strut Tower Braces

Ford Strut Tower Braces

Starting at: $19.38

Ford Control Arms

Ford Control Arms

Starting at: $328.55

Ford Trailing Arms

Ford Trailing Arms

Starting at: $116.55

request a catalog
Learn more about our full line of products.