ok guys before you flame me and tell me to search im gonna say i HAVE searched and i think i have found the answer...but i want to be 100% sure.......i have some GC springs...the part #'s are F GC200.64.58 & R GC 180.64.44 looking at those i believe those spring rates are .58 = 330.6lbs. .44 = 250.8lbs. could somebody varify this? the reason is i just ordered some springs with custom rates and im almost possitive these are not 400lbs F and 450lbs. R like i ordered...so i just wanted to be 110% sure before i started bitching at people....thanks for the replies!

 

Your calculations are correct.