spring rate question.
 

what are the spring rates for 87 irocz rear springs and 97 v6 camaro rear springs ?

I have found info on stock iroc rear springs stating they are anywhere from 103-140, check thirdgen.org or google for information

after doing some research looking up the part numbers. the irocz rear springs have a coil rate of 155lbs/in and the other are 95lbs/in. so looks like ill be replacing the worn out ones with the irocz rear springs for now anyways. i just hope they don't lower the car any. if im lucky they will raise it up a bit.