I bought some used Ground control coilovers.How do I tell what spring rates they are?

Thanks

 

its on the spring. last 3 numbers i believe. 0800.250.0340 means the spring is 8" (0800) 2.5" ID (250) and 340 rates (0340)

1000.250.500 would mean 10" long, 2.5" ID and 500 spring rate

 

http://www.norcalcrx.org/tyson/coilover.html

How do I tell what my spring rates are?
Ground Control sells Eibach Race Springs (ERS) which are labelled by 3 different values in the following convention: length . diameter . spring rate. However, ERS will come labelled in either Metric (mm.mm.N/m) or English (inchx100.inchx100.lbs/inch) units. 180.64.61 is the same thing as 700.250.350. The conversion from Metric to English is (/.254, /.254, x5.7) "/" means "divide by", "x" means "multiply by".

 

Ok thats makes more since.

Heres what mine read:

Front:180.64.44
Rear:200.64.58

Front:708/251/250
Rear:787/251/330

So thats a 7 inch spring, 2 1/2 width spring, 250lb. spring rate in the front
7.8 inch spring, 1 1/2 width spring,, 330lb. spring rate in the rear.

Or am I off?

 

i think its more like an 8" spring and 2.5 inner diameter. and typically thats the FRONT spring, but whatever.