Detroit Speed Short Long Arm Conversion System; Double Adjustable (79-93 Mustang)Find parts that fit my vehicle

Detroit Speed’s Short Long Arm (SLA) Suspension Conversion redefines Fox Body handling with a no-compromise double wishbone design. This system replaces the outdated factory suspension with modern geometry, increased strength, and race-proven adjustability, delivering premium fit, finish, and performance.

SUPERIOR SUSPENSION GEOMETRY & STABILITY
Detroit Speed’s exclusive frame rail insert optimizes camber gain and roll center height, significantly improving front-end stability. The tubular upper and lower control arms reduce deflection, providing precise suspension movement and sharper handling response.

FORGED UPRIGHTS & EXPANDED BRAKE OPTIONS
Lightweight forged aluminum uprights feature modern hubpack bearings for durability and reduced maintenance. Designed to work with S550 Mustang (2015-2024) brake systems, this setup provides access to high-performance braking solutions for superior stopping power.

PRECISION CONTROL WITH DOUBLE-ADJUSTABLE COILOVERS
Detroit Speed/JRi double-adjustable aluminum coilovers feature Detroit Tuned valving, allowing independent tuning of high and low speed rebound for maximum control. Paired with a 1-7/16” adjustable-rate sway bar, this system delivers fully customizable handling for both street and track applications.

MAXIMIZED TIRE CLEARANCE
Designed for serious performance applications, this system allows clearance for 275/35R18 tires on a 10” rim while maintaining full steering lock. Whether on the street or track, this setup ensures maximum grip without compromise.

FACTORY COMPATIBILITY, PERFORMANCE UPGRADE
This system is optimized for factory 1987-1993 V8 K-members and aftermarket K-members, ensuring seamless integration into high-performance builds. Some fabrication is required, but the result is a modernized, precision-tuned suspension that outperforms factory limitations.

MADE IN THE USA
Detroit Speed’s Short Long Arm Suspension Conversion is proudly engineered and manufactured in Mooresville, North Carolina, ensuring superior craftsmanship, durability, and precision fitment.

BEST-IN-CLASS WARRANTY
Detroit Speed products are backed by a two-year limited warranty against defects in material and workmanship

FEATURES AND BENEFITS
• Optimized camber gain and roll center height for better handling stability.
• Tubular upper and lower control arms improve suspension geometry and reduce deflection.
• Forged aluminum uprights with modern hubpack bearings for durability and reduced maintenance.
• Detroit Speed/JRi aluminum double-adjustable coilover shocks for precision damping control.
• Adjustable 1-7/16” diameter sway bar for improved front-end response.
• Clearance for up to 275/35R18 tires while maintaining full steering lock.

FITMENT NOTES
• Fabrication required
• Optimized for factory 1987-1993 V8 K-members and aftermarket K-members
• Requires S550 Mustang (2015-2024) brake system
• Hub utilizes 5x4.5” wheel bolt circle, 2.78” pilot diameter

Specifications
ManufacturerDetroit Speed
Emission Code4
Shock TypeDouble Adjustable

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