PistolPete-RX8

I'm installing my S-techs and was curious about which spring is the front and which is the rear. I was told that the short spring was the front and the longer spring was the rear. Is this correct? Also the shorter spring has the letter "r" in the serial # which leads me to believe it is the front. Is this correct?

Just curious cause the stock springs are longer in the front than the rear.

Thanks,
Pete