Thanks for the information on Delrin bushings. Will change my direction on control arms. I couldn’t agree more on the huge improvement body bushings make. Years ago I machined solid aluminum bushings for the rear mounts to better tie in the subframe connectors. Fearing harshness, I installed polyurethane body bushings in the other two locations and the core support. With no other changes at the time, truly amazing improvement in how tight the car drove. Sage advice on penetrating oil. Through the years I’ve used a lot of different products but found PB Blaster works great. When tearing into an old assembly I’ll spray everything down a or two ahead of time.
