Well I finally scaped enough dough together to get my SS brake lines, poly bushings,KYB struts, and Ground control coil over adjustable spring put on my 83 supra. What happens!? the F#$%@N coil over spring are not wide enough for the KYB strut inserts!!!!! So I have stock springs and all the other goodness together, The ride is much better although alot louder when turning corners[is this creaking normal?!] I have 425lb springs and hope to save up for another run to the suspension shop, well I hope GC will exchange the springs for a larger diameter. I really love the braking feel now and definetly enjoy the twisties over the stock set up. Anybody else have this problem? I did my home work on this site but did not find any data on proper spring diameter.