Back in the 80's, HO Racing used to market a "strong arm" suspension kit for GM A-bodies. It included constant rate springs and 1-3/8" sway bars. I installed such a set on my 1970 Stage1 and REALLY liked it. Now I'd like to find another kit for my 1968 GS400. Unfortunately, HO Racing has gone out of business. Does anyone have an old kit laying around or know of something equivalent? Thanks.