QA1 Mopar Rear Coilover Conversion System – Upgrade Your Classic Mopar’s Suspension!

The QA1 Mopar Rear Coilover Conversion System (R155-175) is an all-in-one solution to transform your classic Mopar A, B, or E-Body muscle car into a high-performance machine. This bolt-in triangulated 4-link rear suspension setup improves launch traction, ride comfort, and adjustability, giving you the perfect stance and modern handling feel.

Designed for street performance, autocross, drag racing, and pro-touring applications!

Perfect for classic Mopar owners who want better suspension geometry and adjustability!

What’s Included in the Kit?

✅ Rear Coilover Shocks (Single Adjustable) – Tune your suspension for ride comfort or performance
✅ 175 lbs./in. Coilover Springs – Optimized for street & track driving
✅ Adjustable Upper & Lower Trailing Arms – Dial in wheelbase, traction, and handling
✅ Trailing Arm Mount Braces & Hardware – Reinforces chassis for added stability
✅ Clearance for 3” Over-the-Axle Exhaust – No need to modify your exhaust system
✅ Supports Standard & Inboard Spring Locations – More flexibility in suspension setup

Upgrade your Mopar’s rear suspension with modern 4-link geometry and coilover adjustability!

Technical Specifications

⚡ Achieve modern performance while keeping your Mopar’s classic style!

Fitment & Compatibility

✔ Designed for Classic Mopar A, B, & E-Body Vehicles
✔ Compatible with Mopar 8 3/4″, Ford 9″, and Dana 60 Rear Differentials
✔ Works with Standard & Inboard Spring Locations
✔ Supports Large Wheels & Tires with Wheelbase Adjustments

Ideal for both street and track builds!

Installation Notes & Tips

Minimal welding required – Mostly bolt-in for easier installation
⚙️ Provides better suspension geometry & weight distribution
Allows fine-tuning of pinion angle & wheelbase for maximum performance
For best results, pair with QA1’s front coilover conversion system

⚠️ Professional installation recommended for optimal performance!

❓ Frequently Asked Questions (FAQ)

How does this system improve handling?

• The triangulated 4-link design and coilover shocks enhance traction, stability, and ride comfort, reducing wheel hop and increasing control during acceleration and cornering.

What rear axle does this kit support?

• This kit is designed to work with Mopar 8 3/4″, Ford 9″, and Dana 60 rear axles.

Do I need to modify my exhaust?

• No! This kit is designed with 3” over-the-axle exhaust clearance, so you won’t need to alter your existing exhaust system.

Is welding required?

• Minimal welding is needed. Most components bolt directly into place for easier installation.

Can I install this kit myself?

• Yes, if you have experience with suspension work. Otherwise, professional installation is recommended for best results.

Does this kit include a sway bar?

• No, but an optional rear sway bar is available separately for added stability and cornering performance.

Call to Action – Upgrade Your Classic Mopar Today!

Transform your Mopar’s rear suspension for modern performance and adjustability!

✔ Triangulated 4-Link Suspension for Maximum Control
✔ Adjustable Coilovers for Custom Ride Height & Handling
✔ Compatible with Multiple Axles & Large Wheel/Tire Combos
✔ Bolt-In Installation with Minimal Welding Required

Order Now & Experience the Ultimate Rear Suspension Upgrade for Your Mopar!

Overview