John McGann Editor
August 24, 2017

Aldan American has been manufacturing coil-over shocks in the USA since 1981, and recently the company has begun manufacturing vehicle-specific suspension kits for the Mustang, Fairlane, Falcon and GM muscle cars of the ‘60s, ‘70s and ‘80s, specifically 1964 - 1973 Mustang, 1964 - 1987 A&G bodies, 1967 - 1981 Camaro/Firebird, with more in development. The kits come with your choice of single- or double-adjustable shocks and an adjustable spring seat and spanner wrench to raise and lower the front ride height. Several spring rates are available depending on driving style and vehicle weight. Follow along as we install a set on Mike Miller’s recently-restored 1966 Mustang.

The first step is to measure and record the vehicle's ride height. This provides a baseline for you to return the vehicle to it's desired ride height after installation. A big advantage for coilovers, of course, is the ability to infinitely adjust the vehicle's ride height within the limits of adjustment threads on the shock body. Note that raising or lowering the vehicle will change the alignment settings. Plan to have an alignment performed after installing the new components.
After safely supporting the car by the frame, remove the front wheels.Remove the six bolts that hold the inner wheel well / spring cover and remove it.
Remove the three bolts that hold the upper shock brackets and lower shock nuts, then remove the shocks.
To safely remove the springs, it's critical to use an internal spring compressor. With the spring out of the way, remove the lower spring saddle from the control arm.
The first step for reassembly is to clean the spring pocket of rust so the upper spring perch ring sits in the spring pocket. Clamp the ring in place so the holes align with the original holes in the shock tower.
The slots in the shock tower need to be enlarged to fit the new hardware included with the coilover kit. We used a 3/8-inch drill bit to open up the slots. Our vice grip clamp is used to keep the ring aligned with the shock tower slots.
The upper coilover mount fits on top of the shock tower. The supplied hardware fits through the upper mount, the shock tower and spring perch ring.
There will be a gap between the spring perch ring and the shock tower. Extra washers are included in the kit to fill the gap. We used three washers in this application, which Aldan says is typical for Mustangs of this era. Torque the bolts to 35 ft-lbs.
The coil-over shock can now be installed from the bottom up and torqued to 35 ft-lbs. With the top secured, install the lower shock T-bar to the upper control arm and torque the nuts and bolts to 35 ft. lbs.
The coil height can now be adjusted for ' preload and the inner wheel well shock and spring cover may now be reinstalled. Aldan recommends using anti-seize compound on the shock body threads to prevent galling. Reinstall the wheels and put car back on the ground and check the ride height. If you satisfied with height you are ready for a test drive. The car will require a wheel alignment at a qualified alignment shop.

Parts List

Description P/N Source Price
Mustang/Falcon/Fairlane Coilover Kit Aldan American M1SBF2S : $798.95

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