as far as i know, they only had 2 different springs...... yellow (soft), and chrome (stiffer than the yellow - think they called them medium springs). i've never seen a "hard" pair of rpm worlds springs.adam lancia wrote:That is looking great! Did RPM make a set of shock springs for their chassis kit or just the yellows?
also, they only made the springs for the front shocks. their worlds conversion required you to cut 2-3 coils off of a standard associated front truck spring (1.02 shocks). the rpm spring..... that step is already taken care of.