creek

A few random notes about the Ground Control install.

1. I did not like how the "Adapter" allowed the top of the spring to move laterally on the top mount. At full compression it moves so far out of line that the shock body can hit the spring. Gary at TDR said to use the stock full length bumpstops to prevent the motion and retain the adapter. At full extension the adapter can become unsupported by the spring and move off the spring seat. The instruction sheet (laughable term) that came with the kit said to shorten the stops. My solution was to bond the urethane adapter to the top mount with contact cement. No more wandering adapter.

B. I am sure someone knows this already but nobody told me. I had to figure it out for myself. So you don't have to...........

How to decode the numbers on the spring:

Example: GC 150.64.66

The first number is the length in millimeters. 150 x .03937 = 5.9055" (A 6" spring)
The second number is the Inside diameter in mm. 64 x .03937 = 2.51968"
Third number is the compression weight of the spring in kilograms per centimeter. 66 x 5.6 = 369.6 lbs/in (375 nominal)

3. The short springs go in the front. While you are installing the springs onto the shock, if you set the adjusting collar to just capture the spring against the adapter you will be near stock ride height. The height changes at a 2:3 ratio between the collar and the ride height. Moving the collar down 1" lowers the car about 1.5"

D. Don't cross thread the shock shaft nut!!! Ask me how I know. I buggered it up so bad I had to find my tap and die set and refresh the threads. If you are using a nylok style locknut, buy a new one every time. Size is M10 x 1.25 on mine.

No pictures this time. Try Google images if you want to see a picture that you wished you hadn't.

Paul