Ridetech 12103509 User Manual

350 S. St. Charles St. Jasper, In. 47546

Ph. 812.482.2932 Fax [phone]

www.ridetech.com

Part # 12103509

67-70 Mustang Front Fixed Valving Coil-Overs

For Use w/ Upper StrongArms

Shock Assembly:

2 24029999 2.6” Stroke fixed valving threaded shock

2 70008676 2” threaded stud top

2 90001628 .5” I.D. bearing

4 90001995 bearing snap ring

Components:

2 59080700 Coil spring – 8” long / 700 # rate

2 90002312 2” stud top base

2 90002222 Spring retainer kit (included upper and lower spring retainer, screw & clip)

2 90001902 Aluminum cap for Delrin ball

2 90001903 Delrin ball upper half

2 90001904 Delrin ball lower half

4 70010828 Delrin Spring Washer

2 90002356 Upper Shockwave mount

2 90000506 Aluminum Upper plate

Hardware:

2 99562003 9/16” SAE Nylok jam nut Stud top hardware

6 99311012 5/16” x 1” USS Flange bolts Upper mount to strut tower

1. Impact Forged, Monotube shock

2. Rebound adjustment knob (SA Only)

3. Upper coil spring retainer

4. Lower coil spring retainer

5. High tensile coil spring

6. Set screw

7. Delrin Spring Washer

1. Stud top base

2. Lower Delrin ball half

3. Upper Delrin ball half

4. Aluminum cap

5. 9/16” Nylok jam nut

6. Threaded stud

7. Adjustment knob (SA Only)

8. Screw

9. Snap ring

1. Place the upper plate on top of the
strut tower. While holding the upper
Shockwave mount up to the bottom of
the strut tower, fasten the assembly
with three 5/16” x 1” flange bolts.

2. Place the stud up through the upper
mount. (See diagram)

3. Attach the bottom of the shock to
the upper arm w/ the hardware
supplied w/ the upper arm.

Ride Height

We have designed most cars to have a ride height of about 2” lower than factory. To achieve the best ride
quality & handling, the shock absorber needs to be at 40-60% overall travel when the car is at ride height. This
will ensure that the shock will not bottom out or top out over even the largest bumps. Measuring the shock can
be difficult, especially on some front suspensions. Measuring overall wheel travel is just as effective and can
be much easier. Most cars will have 4-6” of overall wheel travel. One easy way to determine where you are
at in wheel travel is to take a measurement from the fender lip (center of the wheel) to the ground. Then lift
the car by the frame until the wheel is just touching the ground, re-measure. This will indicate how far you are
from full extension of the shock. A minimum of 1.5” of extension travel (at the wheel) is needed to ensure that
the shock does not top out. If you are more than 3” from full extension of the shock then you are in danger of
bottoming out the shock absorber.

Adjusting Spring Height

When assembling the CoilOver, screw the spring retainer tight up to the spring (0 preload). After entire
weight of car is on the wheels, jounce the suspension and roll the car forward and backward to alleviate
suspension bind.

• If the car is too high w/ 0 preload then a smaller rate spring is required. Although threading the spring
retainer down would lower the car, this could allow the spring to fall out of its seat when lifting the car by
the frame.

• If the car is too low w/ 0 preload, then preload can then be added by threading the spring retainer up to
achieve ride height. On 2.6” - 4” stroke shocks, up to 1.5” of preload is acceptable. On 5-7” stroke
shocks, up to 2.5” of preload is acceptable. If more preload is needed to achieve ride height a stiffer
spring rate is required. Too much preload may lead to coil bind, causing ride quality to suffer.