2024-2025
2015-2023
2010-2014
2005-2009
1999-2004
1994-1998
1979-1993
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
No guide available for this part yet.
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QA1 MOD Series Adjustable Rear Coil-Over Conversion Kit; 175 lb./in. Spring Rate (79-04 Mustang, Excluding 99-04 Cobra)Find parts that fit my vehicle
Item 439255
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Our Price
$2,168.95 kit
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- Rear Coil-Over Conversion Kit
- Progressive Spring Rate of 175-Pound/Inch
- Ride Height Adjustability for Custom Stance
- Improves Handling and Ride Control
- Built from Premium-Grade Materials
- Aluminum Shock Bodies for Lightweight Strength
- Double Adjustable Shocks for Compression and Rebound Tuning
- Straightforward Bolt-On Installation
- Includes Springs, Shocks, Brackets, and Hardware
- Welding Not Needed
- Made in the USA with High-Quality Materials
- Limited Lifetime Warranty
- Fits 1979-2004 Ford Mustang Models (Excluding 1999-2004 Cobra)
| Brand | QA1 |
| Front Drop Height | 0.0 |
| Rear Drop Height | 2.0 |
Description
Ultimate Suspension Upgrade. The QA1 MOD Series Adjustable Rear Coil-Over Conversion Kit (175 lb./in. Spring Rate) transforms your Mustang’s rear suspension into a high-performance, track-capable system. Designed to provide superior ride control and responsiveness, this kit allows for both ride height and damping adjustments, giving drivers a highly tunable suspension tailored to their specific driving style or road conditions.
Construction and Appearance. This kit features high-grade aluminum shocks with a sleek anodized finish for corrosion resistance and a lightweight advantage. The springs are rated at 175 lb./in. and engineered for optimal balance between comfort and handling. All components, including brackets and hardware, are precision-manufactured for a secure fit and long-lasting performance.
Installation. Installation is bolt-on with no welding required, making it a convenient upgrade for seasoned builders and DIY enthusiasts alike. Basic mechanical tools are needed, and moderate mechanical skill is recommended.
Warranty. QA1 backs this kit with a limited lifetime warranty, giving peace of mind in its durability and quality.
Application. This QA1 MOD Series Adjustable Rear Coil-Over Conversion Kit (175 lb./in. Spring Rate) fits 1979-2004 Ford Mustang models, excluding 1999-2004 Cobra.
QA1 RCK52411
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- Mounting Brackets
- Adjustable Aluminum Shocks
- Springs
- Installation Hardware
4.6
Reviews of QA1 Suspension Products (103)
Reviews of QA1 Suspension products have an average rating of 4.6 out of 5
Questions & Answers
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Will It Fit My Mustang
- Bullitt - 01
- Cobra - 81, 93, 94, 95, 96, 97, 98, 99, 01, 03, 04
- Cobra R - 93, 95, 00
- GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
- LX - 87, 88, 89, 90, 91, 92, 93
- Mach 1 - 03, 04
- Other - 79, 80, 81, 82, 83, 84, 85, 86
- V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
