I just bought a pair of HPG Shock Assys for the front of my sled, have the proper part number (obtained through the on-line micrfiche sites), all good. However, I noted that while the springs look similar to my Trail setup (wire diameter, rough # of coils), they have different color codes. NE1 know of a site that lists spring specs/color codes?
Also, one will find "European" calibrations on those micrfiche sites, some have dual-rate springs, but not all. What exactly are these "Euro" calibrations, NE1 running them? What are the differences? Why the different calibrations?