Detroit Speed

1964-1966 Mustang Front Speed Kit 2 SA

Single Adjustable Shock

Part # 031375-SDS

1964-1966 Mustang Front Speed Kit 2 SA

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The Detroit Speed Front Speed Kit 2 updates the look, handling, and performance of your classic Mustang to modern standards. The Speed Kit 2 lowers the ride height 1.5-3 inches with control arms, coilovers, sway bars, spindles and shock tower closeouts. Coilovers have been "Detroit Tuned" specifically for the suspension system. The included spindles use larger bearings as used on the Boss 302 in Trans-Am Racing. This kit pairs perfectly with your Detroit Speed Rear Mini-Tub Kit.


  • Lowers ride height 1.5-3 inches
  • Coilover spring/shock relocated to lower control arm for improved ride control
  • 1-piece style lower control arms include cross-axis bushing and heavy duty, adjustable strut rod pivot
  • Upper control arms feature DSE Caster Tuner slugs for improved alignment adjustability
  • “Detroit Tuned” Single Adjustable Coilover shock allows customer to dial in their preferred shock settings
  • Upper shock mount relocated under fender apron, making for clean engine compartment
  • Shock tower closeouts improve clearance, allowing for wider front wheel/tire packages
  • 1 ¼” x .188 wall tubular sway bar
  • Spindles use larger bearing and tie rod ends – first developed for Trans-AM Boss 302 Mustangs
Application1964-66 Mustang
Brand Detroit Speed
Coil Spring Rate350
Emission Code6
Product TypeFront Suspension
Shock TypeSingle Adjustable
Spindle IncludedForged Steel
Sway Bar Diameter1.25
Sway Bar IncludedYes
California Proposition 65 RequiredYes
Part Number031375-SDS
Brake Kits sold separately (use 70-73 drum brake spindle application)

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Some parts are not legal for use in California or other states with similar regulations.