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HomeGarageDetroit Speed offers suspension kit for Fox-body Mustangs

Detroit Speed offers suspension kit for Fox-body Mustangs

$3,300 kit designed to enhance handling of increasingly popular collector cars

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Fox-body Ford Mustangs have become increasingly popular with especially younger car enthusiasts, and in January 2021, a “mini-tub suspension kit” will be offered by Detroit Speed for 1979-93 Mustangs and 1979-86 Mercury Capris.

“Not only does this kit fix common issues seen in the Fox Body platform, it improves suspension geometry, ride quality and driving characteristics without sacrificing appearance,” according to Detroit Speed, which is based on Mooresville, North Carolina. 

“With the Mini-Tub Suspension Kit, you can expect improved traction, stability, and lower driveline vibrations, giving you more confidence for spirited driving.”

The company adds that the kit was designed for daily driving, drag strip, autocross and track use, and combines Detroit Speed’s Rear Coilover Conversion, Swivel-Link, Rear Sway Bar, and Adjustable Track Bar kits.

“The Detroit Speed Coilover Conversion Kit allows the latest in coilover spring/shock technology to be bolted on to any Fox Body Mustang, bringing your classic’s handling and ride into the 21st Century with our ‘Detroit-Tuned’ valving,” the company adds. “The springs are removed from the lower control arms and shocks mounts are relocated into the frame rail for maximum strength and wheel/tire clearance. Once coilover conversion is complete, Detroit Speed Mini-Tubs may be installed in the car at any time.

Detroit Speed says the benefits include:

  • Bolt-on coilover conversion relocates the springs/shocks to the frame rail for maximum strength and wheel/tire clearance
  • ‘Detroit-Tuned’ coilover springs/shocks optimized for modern ride quality, handling and ride-height adjustment
  • Clearance for custom exhaust up to 3-inch (depending on tire and mini-tub width, fuel tank modification may be required)
  • Laser-cut brackets compatible with original frames and axles.

The company notes that the coilover kit is required before installation of the Swivel-Link, which features links stronger than factory control arms, eliminate bind, allow adjustment of wheelbase and pinion angle without unbolting and improve traction and lower driveline vibration.

“The Detroit Speed Fox Body Mustang Sway Bar offers multiple advantages over the non-effective stock rear bar,” the company adds. “Detroit Speed sway bars attach to the rear end housing and the frame rail, where the stock bar only connects to the lower suspension links. By using the chassis to stabilize the rear axle as opposed to the opposing link, the deflection of the vehicle under heavy cornering is minimized. 

“The Detroit Speed Fox Body Mustang Adjustable Track Bar Kit adds a critical link to keep the rear axle stable during hard cornering. The factory 4-link is completely ineffective at locating the axle side-to-side as the suspension arms travel vertically. 

“The addition of a Detroit Speed Track Bar to the Fox Body Mustang will prevent the axle from wandering unpredictably. The track bar connects to the rear axle to the chassis of the vehicle, which helps keep the axle centered under the chassis during suspension travel. This gives the driver better grip and acceleration off the line and more confidence in the corners.”

Mustang, Detroit Speed offers suspension kit for Fox-body Mustangs, ClassicCars.com Journal
Detroit Speed’s Fox-body Mustang suspension kit | Detroit Speed photo

The complete mini-tub kit is priced at $3,300 and is available from the Detroit Speed website.

Larry Edsall
A former daily newspaper sports editor, Larry Edsall spent a dozen years as an editor at AutoWeek magazine before making the transition to writing for the web and becoming the author of more than 15 automotive books. In addition to being founding editor at ClassicCars.com, Larry has written for The New York Times and The Detroit News and was an adjunct honors professor at the Walter Cronkite School of Journalism and Mass Communication at Arizona State University.

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