DSE Front Speed Kit 1 - Single Adjustable Shocks (031383DS) - 1979-1989 Ford Mustang / 1979-1986 Mercury Capri
Transform the front suspension of your Fox Body with the Detroit Speed Front Speed Kit 1, a coordinated performance package engineered to improve steering response, cornering stability, ride control, and suspension adjustability. Designed for 1979-1989 Ford Mustang and 1979-1986 Mercury Capri applications, part number 031383DS combines tubular lower control arms, QA1 single-adjustable struts, an adjustable-rate front sway bar, billet caster/camber plates, 700 pounds per inch springs, and Detroit Speed's Weight Jack system. The result is a serious front suspension upgrade built for enthusiasts who want greater control and adjustability on the street or track.
The 031383DS Speed Kit 1 is designed around factory or stock-geometry aftermarket K-members for a bolt-in installation. Tubular lower control arms use SN95 ball joints, while billet caster/camber plates incorporate Speed-LIGN technology for precise, repeatable alignment adjustment. The Weight Jack system provides convenient ride height and spring adjustment, and the 1-7/16-inch diameter x 0.188-inch wall adjustable-rate sway bar helps reduce body roll and improve cornering stability. QA1 single-adjustable struts give you additional control over suspension tuning, allowing the front end to be tailored more closely to your driving setup. Detroit Speed recommends 1994-1995 SN95 spindles when converting to a 5-lug configuration.
Specifications
- Manufacturer: Detroit Speed
- Part Number: 031383DS
- Product Type: Front Speed Kit
- Speed Kit Type: Front Speed Kit 1
- Application: 1979-1989 Ford Mustang / 1979-1986 Mercury Capri
- Shock / Strut Type: Single Adjustable
- Strut Manufacturer: QA1
- Front Spring Rate: 700 pounds per inch
- Lower Control Arms: Tubular
- Ball Joints: SN95
- Sway Bar Type: Adjustable Rate
- Sway Bar Diameter: 1-7/16 inches
- Sway Bar Wall Thickness: 0.188 inch
- Caster / Camber Plates: Billet with Speed-LIGN technology
- Ride Height Adjustment: Weight Jack system
- K-Member Compatibility: Factory or stock-geometry aftermarket K-members
- Recommended Spindles for 5-Lug Conversion: 1994-1995 SN95 spindles
- Installation Type: Bolt-In
- Warranty: Two-year limited warranty
- Manufactured In: Mooresville, North Carolina, USA
Features
- Integrated front suspension package engineered for 1979-1989 Ford Mustang and 1979-1986 Mercury Capri applications
- QA1 single-adjustable struts provide suspension tuning capability for street and track setups
- Tubular lower control arms with SN95 ball joints improve the foundation of the Fox Body front suspension
- 1-7/16-inch diameter x 0.188-inch wall adjustable-rate front sway bar helps reduce body roll and improve cornering stability
- Billet caster/camber plates provide accurate suspension alignment adjustment
- Speed-LIGN technology helps provide precise, repeatable alignment without unwanted movement
- Weight Jack system allows convenient ride height and spring adjustment
- 700 pounds per inch front springs provide a performance-oriented spring rate for responsive handling
- Compatible with factory or stock-geometry aftermarket K-members
- SN95 ball joint compatibility supports popular Fox Body suspension upgrade combinations
- Detroit Speed recommends 1994-1995 SN95 spindles when performing a 5-lug conversion
- Bolt-in design simplifies integration into compatible Fox Body suspension configurations
- Engineered to improve steering response, cornering stability, and front suspension control
- Suitable for performance street and track-oriented Fox Body builds
- Designed and manufactured in Mooresville, North Carolina
Fitment
- 1979 Ford Mustang
- 1980 Ford Mustang
- 1981 Ford Mustang
- 1982 Ford Mustang
- 1983 Ford Mustang
- 1984 Ford Mustang
- 1985 Ford Mustang
- 1986 Ford Mustang
- 1987 Ford Mustang
- 1988 Ford Mustang
- 1989 Ford Mustang
- 1979 Mercury Capri
- 1980 Mercury Capri
- 1981 Mercury Capri
- 1982 Mercury Capri
- 1983 Mercury Capri
- 1984 Mercury Capri
- 1985 Mercury Capri
- 1986 Mercury Capri
FAQs
What vehicles does DSE 031383DS fit?
Detroit Speed 031383DS fits 1979-1989 Ford Mustang and 1979-1986 Mercury Capri applications. It is designed for use with factory or stock-geometry aftermarket K-members.
What type of shocks or struts are included with DSE 031383DS?
The kit includes QA1 single-adjustable struts. Their adjustable design allows suspension settings to be tuned to better suit the vehicle and intended use.
What spring rate is included with DSE 031383DS?
Detroit Speed specifies 700 pounds per inch front springs for the 031383DS Front Speed Kit 1.
What does the Weight Jack system do?
The Detroit Speed Weight Jack system provides convenient adjustment of ride height and expands the ability to tune the front suspension setup without relying on a conventional fixed spring arrangement.
What sway bar is included with DSE 031383DS?
The kit includes a 1-7/16-inch diameter x 0.188-inch wall adjustable-rate front sway bar designed to reduce body roll and improve cornering stability.
Does DSE 031383DS work with an aftermarket K-member?
Yes, provided the aftermarket K-member maintains stock suspension geometry. Detroit Speed specifies compatibility with factory and stock-geometry aftermarket K-members.
Can DSE 031383DS be used with a Fox Body 5-lug conversion?
The lower control arms use SN95 ball joints, and Detroit Speed recommends 1994-1995 SN95 spindles for a 5-lug upgrade.
Get Your Detroit Speed Fox Body Suspension from Beefcake Racing
Upgrade your Fox Body Mustang or Mercury Capri with the adjustability, handling control, and integrated suspension engineering of the Detroit Speed 031383DS Front Speed Kit 1 from Beefcake Racing. Whether your build is headed for aggressive street use, autocross, road course duty, or a complete restomod transformation, our team can help you select the right suspension components for your combination. Questions about Detroit Speed 031383DS or your Fox Body suspension setup? Contact Beefcake Racing at sales@beefcakeracing.com or call 1-855-827-7223.
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