In Stock
QA1 Mopar Front Street Performance Coilover Conversion Systems 52346-S400
- ISPM 15 heat-treated Euro palletized & weatherproof shrink-wrapped
- Insured European road freight delivery with hydraulic tail-lift service
- Dispatches in 1–2 business days from our UK & European Logistics Centre
- Transit typically 1–3 business days (UK) / 3–6 business days (Continental Europe)
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
QA1's 52346-S400 is the single-adjustable sibling to the double-adjustable 52346-D400, running the same 400 lbs./in. spring rate but with compression and rebound tuned together rather than on separate dials, sized for 1966-74 Dodge Charger, Coronet, and Plymouth Road Runner and GTX models.
What to check before buying
Either factory-style or aftermarket brakes bolt up fine, but none ship in the box, so figure out your rotor and caliper plan before checkout. Separately, an engine mount purchase is needed too, picked to suit whatever sits under the hood.
What comes with it
A crossmember in plain steel, tubular upper and lower arms, and a power-assisted rack-and-pinion unit replace the stock torsion-bar hardware, finished out with tie rod ends and a full hardware kit for bolting everything into place; no welder is needed anywhere in the install.
Does this include disc brakes? No, rotors and calipers are sourced on your own, factory-style or aftermarket.
How does the adjustment work? It is single adjustable, one dial rather than separate compression and rebound settings.
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 |
Performance Installation & Verification Checklist
- Disconnect vehicle battery ground terminal before installing any electrical, sensor, or powertrain hardware.
- Inspect all vacuum lines, fuel lines, and wiring harness connectors for secure, leak-free engagement.
- Calibrate electronic sensors, boost control solenoids, and ECU maps according to manufacturer instructions.
- Perform initial datalogging check under light load before subjecting vehicle to wide-open throttle.
Full terms: 30-day warranty · returns