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NASA Racers! MM will support NASA road racers with $1,000 contingency prizes for the American Iron, American Iron Extreme, and Spec Iron at the 2019 National Champions. You must register to be eligible.

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

Replacement O-rings for Mustang power steering rack fittings, 1979-2004
Actual product may differ from photo.


  • Item # Service-9
  • Manufacturer: Maximum Motorsports


Featured in this installation article in Mustang Monthly.

These O-rings seal the connection between the power steering hose fittings and the steering rack. The stock O-rings will not survive more than just a very few times tightening the fitting to the rack.

These same O-rings and sealant are included in our AN hose power steering fitting kit. (ST-73)

  • Includes two pair of PTFE O-rings to seal the hose fittings to the steering rack.
  • Includes hydraulic pressure-rated thread sealant.
  • Does not include hoses or hose fittings.

Related Products

  • New O-rings to replace your worn, damaged, leaky seals
  • Hydraulic thread sealant provides secondary seal.
  • Two pair of PTFE O-rings
  • Two sizes, to fit the two fittings on the Mustang
  • Hydraulic thread sealant


You can read Maximum Motorsports' highly detailed Service-9 installation instructions before purchase.