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MM Coronavirus Update

We’re changing our phone hours to 9:00 AM to 3:00 PM Pacific Time (Monday-Friday, excluding holidays) so we have more time to process orders and get them out to you.

Please be aware
Our supply chain is suffering major pandemic-related disruptions. Many of our suppliers shut down for a time, and like us are operating with reduced manpower. Meanwhile, demand for MM products has skyrocketed. Thank you! We’re a small company and we regret our website isn’t fancy enough to inform you of back orders when you buy something. Please understand that we’re working as fast as we can to fill your orders.

UPS Shipping Times As of March 24, UPS no longer guarantees the shipping time for any shipment. i.e., expect shipping time to lengthen.

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Mustang Front Control Arm Swaps



Closely related to the subject of swapping spindles between model years is the subject of swapping front control arms.

Installing longer 1994-04 front control arms on a Fox chassis Mustang will...

  • Increase front track width, which will increase front grip.
  • Reduce understeer because of the increase in front grip.
  • Increase cornering speed because of the increase in front grip.
  • Reduce binding in the suspension because of the inherent lower friction of the 1994-04 ball joints. This improves both handling and ride quality.
  • Will increase the amount of negative camber that can be achieved because the ball joint is moved outboard.
  • Longer tie-rod assembly will be required: Either the 1994-04 inner and outer tie-rod assembly, or the special MM bumpsteer adjusting Outer Tie-rod End Kit that has an extended aluminum adapter sleeve.
  • Tire to fender clearance will be significantly reduced, and may require modification of the fender.
  • 1999-04 OEM front control arms provide more tire clearance at full steering lock than the 1994-98 front control arms. This reduces possible interference with wide wheels and tires, allowing a greater steering angle, and therefore a tighter turning radius.
  • MM Tubular Front Control Arms offer a similar improvement in wheel and tire clearance, and the resulting decrease in turning radius.
  • Increased steering angle may be possible only if the OEM steering rack limiters are removed.