Competition Coil-over Kit
Fits Black MMD-RC1xxxx Series shocks

Installs 1 Black Series MM Shock in a 1979-2004 solid-axle equipped Mustang along with a coil-over conversion and an MM Racing Upper Shock Mount. Attaches the MM shock to the MM Racing Upper Shock Mount installed on the chassis. Includes threaded coil-over sleeve and upper and lower spring perches for 1 shock. For coil-over applications and an MM Racing Upper Shock Mount only.

Notes

• 1 kit fits 1 shock. 2 kits required per car.
• Fits Black 3rd Gen MM shocks only. These shocks are black and have a shaft with a 5/8" major diameter.
• Black Series part numbers have this format: MMD-RC1xxxx
• The Black Series is the third generation of MM shocks. Includes Street-ST1, Sport-SP1, Race-RA2, and Race-RA3.
• Requires MM Racing Upper Shock Mount.
• For new installation use MMSM-12 Racing Upper Shock Mount.
• Also fits previously installed Racing Upper Shock Mounts MMSM-1, MMSM-3, and MMSM-5. Some of the previously installed components of those kits will not be reused.
• Does NOT include coil-over spring.
• For coil-over applications only.

Requires shock-to-axle mounting brackets
Coil-over installation requires a robust lower shock-to-axle mounting bracket.

• If you have an MM Panhard Bar, the axle mount does double duty as the lower shock mount for the driver side. Click here to order 1 shock-to-axle mounting bracket (MMSM-2) for the passenger side.
• If you don't have an MM Panhard Bar, click here to order 2 of the shock-to-axle mounting brackets (MMSM-2).

Spanner Wrench Tool
A spanner wrench is necessary to adjust ride height when using springs with a rate less than 250 lb/in. Springs with a higher rate rarely need a spanner wrench for adjustment.

• Click here to order 1 MMT-2 if your spring rate may require a spanner wrench.

Related products

• Black series third-generation MM shocks
• Rear 2.25" diameter coil-over springs
• MMSM-12 Racing Upper Shock Mount
• Axle-to-Shock Lower Mounting Bracket MMSM-2
• For non-coil-over applications use MM Upper Shock Mount Installation Kit MMSM-20.

Installs 1 Black Series 3rd Gen MM shock to an MM Racing Upper Shock Mount in a coil-over conversion:

• Threaded sleeve
• Upper spring perch
• Lower spring perch with locking screw
• Shaft retaining nut
• Shock shaft spacers
• Circlip to support threaded sleeve
• Order 2-1/4" coil-over springs separately.
• Fits 1 shock. 2 MMCO-23 kits required per car.