i ordered the ground control coilover kit 92-2000 civic and they didn't include any paperwork on which coilover goes to which wheel.if you guys know it would help me out.all i know is that 2 coilovers are bigger than the 2 others.

 

You mean 2 of the springs are longer than the other two?

If you bought standard rates, they should be numbered xxx.xxx.xxx The last 3 numbers are the springrate, and the higher rate goes in front, I beleive this will be the longer spring as well.

 

http://www.norcalcrx.org/tyson/coilover.html#09

Which springs go up front?
First, learn how to read the spring rate from your springs. One pair will be stiffer (greater spring rate) than the other. GC normally designs their spring kits so that the front is stiffer. You can follow that, but ERS(springs) are interchangeable. So you CAN put the stiffer in the rear, it will alter the suspension by basically making the rear stiffer, which makes the car less understeer, which is generally more desirable for better handling performance. However, it *makes the rear stiffer*, and you will feel the difference since FWD cars have the center of gravity more towards the front, so the rear wheels rotate further from the CG than the fronts, thus are more sensitive to bouncing motion. Its up to you. I suggest you just follow what GC recommends, but if you are so inclined, cautiously try to swap them and see what you prefer.

 

Long tubes/sleeved rear
Long springs front (if you have two different lengths)