Buy from the Leader in 1979- Mustang Performance Suspensions

Please be patient with Covid-19 delays
Free shipping on all orders over $147*

*48 state deliveries only. Excludes roll bars

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.

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.

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

MM Adjustable Swaybar

The MM Adjustable rear Swaybars provide the ability to easily alter the handling balance of the car. Having the ability to fine-tune the handling balance of a Mustang is critical to achieving the best possible handling. This ability is a key step in optimizing handling performance. Neutral balance may be found on a knife-edge between understeer and oversteer. Racers sometimes adjust their car's balance several times during a race weekend. Changing track conditions, deteriorating tire grip, and even different drivers will all require that changes be made to the rear roll stiffness, to balance the car.

Click on the Tech Info button below for more technical information on adjustable rear swaybars.

Tech Info

Swaybar kits