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MM Road & Track Spring Kit, 1979-93 HT

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MM Road & Track springs are a high-performance spring that will improve your Mustang's handling on the street, the open road, and the track. These aren't just a lowering spring, but were designed primarily to improve handling without significantly degrading ride quality. The moderate lowering improves handling while maintaining good street manners.

  • Lowers your Mustang for better appearance
  • Increased spring rate reduces body roll when cornering and nose-dive when braking
  • Lowers the center of gravity for better handling
  • Quickens steering response

On the road and the track, these MM springs provide an excellent balance of handling and ride quality.

To order

  • Choose a full set of 4 springs, or a front pair or rear pair
  • Select the discounted MMT-8 to make the install much easier and the spring isolators to reduce NVH
  • Click the Add To Cart button

The MM Road & Track Springs have a rate only slightly higher than Ford's OEM Bullitt, Mach 1, and Terminator rates.

Approximate lowering (varies depending upon car weight):

  • 1.0"-1.5" front
  • .75"-1.25" rear

For best performance and ride quality these springs should be matched with a set of performance struts and shocks. Read the Installation tab.

Related products

  • Included with set of 4 springs: MMPS pinion snubber
  • Spring isolators
  • MMT-8 Spring Installation Tool
  • Caster camber plates to ensure proper alignment after lowering
  • Performance struts and shocks


The MM Road & Track springs will:

  • Lower your Mustang, improving appearance
  • Reduce body roll when cornering and nose-dive when braking, because the spring rate is higher than stock springs
  • Quicken the steering response because the spring rate is higher than any stock Mustang springs
  • Lower the center of gravity for faster cornering ability


  • Progressive spring rate
  • Powder-coated for long-lasting protection and great looks



  • 1979-1989 Mustang hardtop with solid rear axle

Does NOT fit

  • Front of 1984-1986 SVO Mustang because the unique SVO front control arm has the spring pocket in a much lower position than the other Mustang control arms
  • Rear of Mustang Cobra IRS

While 1979-2004 Mustang front and rear springs can be physically installed in all 1979-2004 solid axle Mustangs (except SVO front), the amount of lowering in non-listed applications will not be as expected because of the differences in car weight and initial ride height between years and models.



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