I have a GC set up, they are Eibach springs. My front srpings say this on the side of them:

GC200.64.67

and the rear springs say:

0800.250.0425

Now, I know the rear number means, 8ich length, 2.5 inch ID, and 425 Lbs/inch. But what the heck does CG200.64.67 mean on the front? I looked all over the front springs and this was the only number shown on them. Anyone know how to read this? It should be around 375ish lbs/inch, or at least that's what I orderd back when I 1st got them a few years back.

thanks for any help!

 

the numbers you are looking for are 25.4(2.54cm=1inch) and 5.6(56 i forgot what this was for)
200.64.67
67x56= 375.2 lb
64 / 25.4 = 2.51 aka 2.5inch

200/ 25.4= should equal 8inch spring aka 8 quarters(inch) equal 2dollars(200mm)

 

I beleive the first are a custom GC spring. You will have the best luck calling GC and asking them.

 

Look at the faq section in the first post in the rr forum (the sticky post) it has loads of info.

 

thanks for the info. I found it:

my front is 800.250.380 when converted.

 

just for future reference.
http://www.norcalcrx.org/tyson/coilover.html#05