Description
QA1 67-73 Ford Mustang Pro Front Coil-Over System - Double Adj. - 10in x 400lbs/in - Aluminum
Bring modern suspension technology to your classic Mustang with QA1’s Front Pro Coil System. Designed for 1967–1973 Mustangs, this double adjustable coilover kit delivers unmatched handling, ride quality, and stance control. Featuring 10” coil springs with a 400 lb./in. rate, it provides the ideal balance for performance street cars and restomod builds, giving you precision tuning for both comfort and control. PRECISION HANDLING & ADJUSTABILITY QA1’s double adjustable coilovers feature independent rebound and compression controls with 18 clicks each. This allows you to fine-tune your Mustang’s ride and handling for daily driving, spirited cruising, or track use - giving you total control over how your car feels on the road. RIDE HEIGHT FLEXIBILITY Dial in your stance with ride height adjustability from factory stock height down to 2” lower. Perfect for achieving the aggressive look you want while maintaining suspension geometry and drivability. EASY BOLT-IN INSTALLATION No welding or cutting is required. The QA1 Pro Coil System is engineered as a direct bolt-in upgrade, making installation simple with basic tools while delivering professional-level results.
Additional Information
Front Pro Coil double adjustable stock mount shock kit. Includes 10" spring with rating of 400 and a flat end.
Part Type
Coilover Set
Product Overview
QA1 Pro Coil Systems for 1964-1973 Mustangs are a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match, and you are on your way. These shocks also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling. Adjustable Pro Coil System Features:, Available in independent compression and rebound double adjustable, simultaneous compression and rebound single adjustable, or drag "R" Series adjustable, Lightweight Billet Aluminum Coil-Over Shocks, High Travel Springs, Easy, Bolt-In Installation, Ride Height Adjustable, 100% Dyno Tested and Serialized, Serviceable and Rebuildable by QA1 Authorized Service Centers, Made in the USA, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs
This item is available as a full kit.
Select a kit option in the following table if you are looking for this item in a bundle form with all associated components.
Kit option/s:
| Thumb | SKU | Kit Title |
|---|---|---|
| qapHK02-FM02 | QA1 67-70 Ford Mustang Level 2 Full Handling Kit (1x qap7888-109, 1x qapMD402-10400C, 1x qapT114W, 1x qapR224-150, 1x qap52087, 1x qap52704, 1x qap52705, 1x qap52803, 1x qap52900) |
Features
- Application-specific fit for 1967–1973 Ford Mustangs
- Double adjustable shocks with 18 rebound and 18 compression settings
- Easy bolt-in installation - no welding required
- Includes 10” coil springs with a 400 lb./in. spring rate
- Premium hardware and powder-coated springs for durability
- Ride height adjustable: factory to –2”
- Works seamlessly with QA1 tubular control arms and sway bars
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Product Details
| Active or Passive Suspension: | Passive |
| Adjustable Compression: | Yes |
| Adjustable Rebound: | Yes |
| Adjustable Ride Height: | Yes |
| Assembled: | No |
| Brand: | QA1 |
| Description: | QA1 67-73 Ford Mustang Pro Front Coil-Over System - Double Adj. - 10in x 400lbs/in - Aluminum |
| Grade Type: | Performance |
| Internal Construction Type: | Dual Tube |
| Manufacturer Part Number: | MD402-10400C |
| Part Number: | qapMD402-10400C |
| Remote Reservoir: | No |
| Spring Color: | Silver |
| Spring Material: | High Tensile Chrome Silicon |
| Title: | QA1 Pro Coil Shock Kit MD402-10400C |
| UPC: | 806990158673 |
Product Downloads
Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Qa1 |
| StreetFX SKU | qapMD402-10400C |
| SFX Item ID | 4094599 |
| Accounting SKU | qap-MD402-10400C |
| Manufacturer SKU | MD402-10400C |
| Manufacturer UPC | 806990158673 |
| Alternative References | MD402-10400C, QA1-MD402-10400C |
Coilover Kit, Pro Coilover System, Front, Double Adjustable, Ford, Pair
QA1 Pro coilover systems are engineered from the ground up to offer unmatched performance over stock suspension setups. Pro coilover systems utilize adjustable and non-adjustable coilover shocks and springs designed specifically for replacing the factory shocks and springs. This combination offers ride height adjustment and variable position valving adjustment (where applicable) for performance not found in other kits. Choose QA1 Pro coilover systems for your next suspension upgrade.
| Product Attributes | |
|---|---|
| Brand | QA1 |
| Manufacturer's Part Number | MD402-10400C |
| Part Type | Coilover Kits |
| Product Line | QA1 Pro Coilover Systems |
| UPC | 806990158673 |
| Coilover Kit Position | Front |
| Adjustable Valving | Yes |
| Number of Valving Selections | 324 |
| Shocks Included | Yes |
| Internal Design | Twin-tube |
| Coilover Springs Included | Yes |
| Spring Rate (lbs./in.) | 400 lbs./in. |
| Suspension Height Adjustment | 0.0-2.0 in. lowered |
| Gas Charged | No |
| Upper Mount | Eyelet |
| Lower Mount | Tie bar |
| Shock Body Material | Aluminum |
| Shock Body Finish | Silver |
| Bushing Material | Polyurethane |
| Bushing Color | Black |
| Spring Finish | Gray/Silver |
| Crossmember Included | No |
| Adjustable Mounting Bracket Included | No |
| Hardware Included | Yes |
| Welding Required | No |
| Quantity | Sold as a pair. |
| Notes | Coilover shocks are double adjustable Mustang MD402 shocks. Springs are 10 in. tapered with a large diameter, flat upper end style 10HTBF400 springs. |
Compatibility
Loading compatibility information...
Keep shopping
More from Qa1
Qa1
QA1 Stocker Star Series Rear Shock Absorber - Double Adj. - 11in/15.875in - Aluminum
qapTD601

