Description
QA1 Mopar Front Street Performance Coilover Conversion System – Ultimate Handling Upgrade!
The QA1 Mopar Front Street Performance Coilover Conversion System (52346-S400) is an advanced suspension upgrade that replaces outdated components with modern coilovers, tubular control arms, and rack-and-pinion steering. Designed for classic Mopar B/E-body muscle cars, this system significantly improves steering precision, suspension geometry, and ride comfort.
Perfect for everyday street driving, drag racing, and autocross performance!
What’s Included in the Kit?
✅ Steel Crossmember – Provides rigidity and improves suspension strength
✅ Stock-Height Spindles – Maintains proper suspension geometry
✅ Tubular Upper & Lower Control Arms – Stronger, lighter, and optimized for handling
✅ QA1 Single Adjustable Coilovers – Dial in compression and rebound settings
✅ 400 lb./in. Coilover Springs – Designed for street performance and daily driving
✅ Rack-and-Pinion Steering System – Provides precise steering response and reduces play
✅ Inner & Outer Tie Rod Ends – Ensures alignment and stability
✅ All Necessary Mounting Hardware – Complete installation package
Everything you need for a modern-handling Mopar muscle car in one complete package!
Technical Specifications
| Feature | Details |
|---|---|
| Brand | QA1 |
| Manufacturer Part # | 52346-S400 |
| Product Type | Front Suspension Package |
| Crossmember Included | ✅ Yes (Steel) |
| Welding Required | ❌ No |
| Spindle Type | Stock Height |
| Upper Control Arms | ✅ Yes (Tubular Steel) |
| Lower Control Arms | ✅ Yes (Tubular Steel) |
| Shock Type | Single Adjustable Coilover |
| Coilover Spring Rate | 400 lbs./in. |
| Rack & Pinion Steering | ✅ Yes (Hydraulic Power Assist) |
| Brake Kit Included? | ❌ No |
| Ride Height Adjustment | 0-2 inches |
| Tie Rod Ends Included? | ✅ Yes |
| Mounting Hardware Included? | ✅ Yes |
| Installation Type | Bolt-On |
| Quantity | Sold as a Kit |
⚡ Built for enhanced stability, ride comfort, and precise steering control!
Fitment & Compatibility
✔ Fits Classic Mopar B/E-Body Cars
✔ Compatible with 1966-74 Dodge Charger, Coronet, Plymouth Road Runner, GTX, and more
✔ Works with factory and aftermarket brake systems
Ensure proper fitment before purchasing!
Installation Notes & Tips
Direct Bolt-On Installation – No welding required
⚙️ All necessary hardware is included
Rack-and-pinion upgrade improves steering response
Professional installation recommended for best performance
⚠️ Engine mounts must be purchased separately!
❓ Frequently Asked Questions (FAQ)
How does this system improve handling over stock suspension?
- The QA1 coilover conversion replaces outdated torsion bars and worn suspension components with modern coilovers, tubular control arms, and a rack-and-pinion steering system. This results in better handling, reduced body roll, and a much smoother ride.
Is this a direct bolt-on kit?
- Yes! The entire system is designed for bolt-on installation, with no cutting or welding required.
Can I use my factory steering components with this kit?
- No. This kit comes with a rack-and-pinion system, which replaces the outdated steering box for better steering response and control.
Can I adjust my ride height with this kit?
- Yes! The coilovers allow ride height adjustment from 0-2 inches.
Does this kit include disc brakes?
- No. The kit is compatible with factory and aftermarket brake systems, but does not include rotors or calipers.
Call to Action – Upgrade Your Mopar’s Suspension Today!
Transform your classic Dodge or Plymouth into a modern-handling performance machine with the QA1 Mopar Front Street Performance Coilover Conversion System!
✔ Upgrade your steering with rack-and-pinion precision
✔ Lower your car up to 2 inches for a more aggressive stance
✔ Improve ride quality, handling, and cornering stability
✔ Bolt-on installation – No welding required!
Order Now & Experience the Best Suspension Upgrade for Classic Mopars!
Overview
Brand:
QA1
Manufacturer’s Part Number:
52346-S400
Part Type:
Front Suspension Packages
Product Line:
QA1 Mopar Front Street Performance Coilover Conversion Systems
Summit Racing Part Number:
QA1-52346-S400
UPC:
806990163592
Crossmember Included:
Yes
Crossmember Material:
Steel
Crossmember Color:
Black powdercoated
Welding Required:
No
Front Spindles Included:
Yes
Spindle Type:
Stock height
Spindle Finish:
Black powdercoated
Upper Control Arms Included:
Yes
Lower Control Arms Included:
Yes
Control Arm Style:
Tubular
Control Arm Material:
Steel
Control Arm Color:
Black
Upper Ball Joints Included:
Yes
Lower Ball Joints Included:
Yes
Rack and Pinion Included:
Yes
Steering Rack Type:
Hydraulic power assist
Rack Color:
Black
Shocks Included:
Yes
Shock Type:
Single adjustable coilover
Coilover Springs Included:
Yes
Coilover Spring Rate (lbs/in):
400 lbs./in.
Spring Finish:
Black
Disc Brake Kit Included:
No
Front Rotor Included:
No
Front Caliper Included:
No
Brake Pads Included:
No
Sway Bar Included:
No
Center Link Included:
No
King Pins Included:
No
King Pin Bearings Included:
No
Pitman Arm Included:
No
Idler Arm Included:
No
Tie Rod Sleeves Included:
Yes
Inner Tie Rod Ends Included:
Yes
Outer Tie Rod Ends Included:
Yes
Quantity:
Sold as a kit.
Notes:
Engine mounts must be purchased separate. Kit provides up to 2 in. of drop.
