FAQs & Tech Tips

MM News

NEW! Read the article Maximum Motorsports Tames Fox & SN95 Mustang Rear Suspensions on FordMuscle.com.

MRT Exhaust! MM now offers premium MRT cat-back exhaust systems for 1996-2004 Mustangs.

New! for Street & Strip Mustangs! Big-bore rear wheel cylinders for 1979-1993 Mustang with 9" drum brakes. Improves braking when running big rear tires and front skinnies, and/or different OEM front brakes.

New! Swapping a Coyote into a Fox Mustang? MM's Hydroboost Conversion Kits allow easy installation of a 1996-2004 Mustang Hydroboost power brake assist unit into a 1979-1993 Mustang.

New! Swapping an IRS into your Fox Mustang? MM makes it easier with a brake line kit made just for this conversion. Bolts-in, with no cutting or flaring of brake lines. Designed to fit standard IRS brake hoses.

New! MM's billet aluminum Pedal Box Spacer for Fox Mustangs. Replace the breakage-prone OEM plastic spacer when converting to manual brakes or Hydroboost.

Canadians! Please read the latest about ordering from Canada/shipping to Canada.

We've posted the parts list and link to the video of MM's Mustang in /DRIVE Tuner car Shootout

Conversion kit from tapered stud to bolt-through spindle
Actual product may differ from photo.


  • Item # MMTR-5
  • Manufacturer: Maximum Motorsports


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Converts tapered-stud style bumpsteer kit to bolt-through spindle style

  • 1979-04 Mustang with MMTR-2, MMTR-4, and MMTR-7 bumpsteer kits
  • Other brands of tapered-stud style bumpsteer kits for 1979-04 Mustangs
  • All Mustang spindles, 1979-04
  • Bolt-through spindle style bumpsteer kit is required when installing MM K-member.
  • No need to purchase an entire new bumpsteer kit: Allows converting a tapered-stud style kit to bolt-through style.
  • Increases the limited adjustment range of a tapered-stud kit to the wide range of adjustment of the bolt-through bumpsteer kit.
  • Exclusive MM spacers are stronger than others, will not buckle when the bolt is tightened.
  • Large assortment of spacers allows precise fine-tuning of bumpsteer.
  • Measurement and adjustment of bumpsteer is required during installation. MM's Bumpsteer Gauge is the right tool for that.
  • Copyrighted installation instructions show you how to measure and adjust bumpsteer.
Product features
  • Includes 2 different lengths of 5/8" Grade 8 bolts to ensure the best length for your Mustang.
  • Spacer bushings were designed specifically for this kit.
  • Longer spacer bushings are made of thick-wall Chro-Moly steel to ensure they will not buckle when the 5/8" bolt is properly tightened.
  • A large variety of spacer thicknesses ensure the ability to properly adjust bumpsteer.
  • Does not include the aluminum adapter sleeves or spherical rod ends.
  • Requires drilling the spindle steering arm to 5/8".