The Leader in Mustang Performance Suspensions

Adjustable Control Arms

Adjustable Control Arms allow you to raise the rear ride height by up to 2 inches, or lower it as much as 1 inch. The spring perch design allows easy ride height changes, with the car still on the ground. Not only can the ride height be adjusted, but also corner weights, for optimum handling. A swaybar mount allows installation of a standard stock or aftermarket rear swaybar.

Made for the unique length of the Thunderbird control arms; not the same length as a Mustang control arm.

Click on the Tech Info button below for technical information about MM Heavy Duty control arms. While any references in the tech pages specifically mention Mustangs, the Thunderbird arms follow the same design, but are designed for the appropriate T-bird length.
Tech Info


Product Image Product(s)+ Part # Price
12mm hardware kit for RLCA mounting, 1979-98 Mustang

12mm hardware kit for RLCA mounting, 1979-98 Mustang

Hardware for attaching solid-axle Rear Lower Control Arms to 1979-98 Mustang chassis. 2 kits required for a solid axle equipped 1979-98 Mustang, to secure each end of both rear lower control arms. 1 kit required for an...
MMF-5 $15.97

... more info

HD Adj. Rear Lower Control Arms, 1983-88 Thunderbird

HD Adj. Rear Lower Control Arms, 1983-88 Thunderbird

Heavy Duty Adjustable Rear Lower Control Arms, with Swaybar Mount, 1983-88 Thunderbird The easy adjustment of MM's Adjustable Control Arms allows raising the rear ride height by up to 2 inches, or lowering it as much as...
MMRLCA-4 $474.95

... more info

MM Weld-In Rear Spring Adapters, 2-1/2"

MM Weld-In Rear Spring Adapters, 2-1/2"

Using the MM Adjustable Rear Lower Control Arms along with our weld-in upper spring adapter allows the use of standard 2.5" (inside diameter) coil-over springs. Why use coil-over springs in the stock location , on the...
MMCA-1 $29.00

... more info

Urethane Bushing kit for HD RLCA's, 1979-98

Urethane Bushing kit for HD RLCA's, 1979-98

This kit includes replacement urethane for our HD rear lower control arms for 1979-98 Mustangs, as well as new sleeves and grease. Fits MMRLCA-1, MMRLCA-2, and MMRLCA-3 and -4 (T-bird) arm varieties. If you have a 1999...
MMRLCAU-1 $38.95

... more info

Urethane rear spring isolators, 1979-04 Mustang

Urethane rear spring isolators, 1979-04 Mustang

Replacement rear spring isolators, urethane, 1979-04 Mustang (solid axle)
6-1701-BL $18.95

... more info



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