Who makes harder than stock bushings without going all the wat to poly or polygraphite? I read the WHOLE rear control arms on a budget discussion and did not get an answer. I want a good ride, my stock ones are 20+ years old and are more cracked than my head, and someone at Steeda was rude and stupid by email. I wonder if I could get a custom durometer set without a mortgage? As a side note, a panther body (Crown Vic etc.) performance site discusses some flex in the rear control arms as being good for ride quality.