Product Summary

79-04 Ford Mustang, Rear Position, 130 lbs. Spring Rate

  • The QA1 rear coil-over conversion kit for Mustangs includes adjustable aluminum shocks, springs, mounting brackets, and all necessary hardware for improved suspension.
  • The fully threaded aluminum coilover body allows for easy ride height adjustments, enabling up to 2" of lowering from the stock height.
  • Double-adjustable coil-overs provide independent tuning for rebound and compression, optimizing suspension for both street and track use.
  • The kit is ideal for performance drivers seeking enhanced ride quality and handling.
  • It offers a simple, bolt-in installation process, making it a user-friendly upgrade.
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Key Specs

PositionRear
Spring Rate130 lbs.
Shock AdjustabilityDouble Adjustable
Shock TypeTwin Tube
Shock Body MaterialAluminum
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Need To Know

Quick and Easy Returns

Return Policy

QA1 RCK52406 Details

Product Overview

Improve your Mustang's suspension with QA1's bolt-in rear coil-over conversion kit. This kit includes specially designed mounting brackets, adjustable aluminum shocks, springs, and all necessary hardware.
 

Ride Height Adjustability

We understand that achieving the perfect stance for your car can be a challenge. That's why we've created a solution that makes it easy to adjust your ride height. QA1 coilovers feature a fully threaded, aluminum body which allows up-to 2” of lowering from stock.
 

Double-Adjustable Coil-Overs

Fine-tune your suspension for optimal performance on the street or track with our double-adjustable shocks. Independent tunability for rebound and compression allows you to dial in your suspension for any driving condition. Perfect for performance cars and drivers who demand the best in ride quality and handling.
 

Easy, Bolt-In Installation

Our commitment to thoughtful product design is evident in every product we produce, to deliver the highest level of performance, while ensuring trouble-free compatibility.
 

Best In-Class Lifetime Warranty

Register at QA1.net/warranty for lifetime coverage of your QA1 shocks.
 

Made in the USA

QA1 coilovers are proudly made in Lakeville, Minnesota.
 

Fitment Notes

Does not fit Cobra IRS

QA1 RCK52406 Specifications

KEY SPECS
MFG. Part #RCK52406
BrandQA1
PositionRear
Spring Rate130 lbs.
Shock AdjustabilityDouble Adjustable
Shock TypeTwin Tube
Shock Body MaterialAluminum
Upper Shock MountBushed Eyelet
Lower Shock MountBushed Eyelet
Height AdjustableYes
FinishPolished
GENERAL
Compressed Length11.63"
Extended Length16.88"
Number of Valving Selections324
Coilover Springs IncludedYes
Bushing MaterialPolyurethane
Sold in QuantityPair
Hardware IncludedYes
Crossmember IncludedNo
Welding RequiredNo
Gas ChargedNo
Suspension Height Adjustment0.0-2.0 Inch Lowered
Spring FinishPowder Coated
NotesWill not fit Cobra Independent Rear Suspension(IRS).
GTIN Code806990174512
Adjustable ValvingYes
Adjustable Mounting Bracket IncludedNo
Bushing ColorBlack
Lower MountEyelet
Upper MountEyelet
Shocks IncludedYes

Questions & Answers

Fitment

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