Cop cars and the Fifth Avenues are the first choice, especially '83 and later. Like 200 said, cop brakes, plus cop bars, fat sway bar, fast-ratio steering box...tough to go wrong with the cop set-up. Plus, you can go to super HD rebuild parts going through Performance Suspension in Arizona - every single piece to overhaul the suspension for lass than $300, and all in polyurethane instead of rubber, too!