just thought id throw this out there ... s13 disc and calipers can be made to fit onto 120y struts and hubs. i will be oing this conversion again soon and will take a few more pics but all that is needed is to take the 120y hub, machine approx 2mm off the outside (to be a snug fit inside the disc), replace the studs with ones out of a pintara (10mm longer) and make a bracket to hold the s13 caliper in place using the original caliper bolts.