Well, just came back from the dealer, test drove an '86 and '87 420 sel. My conclussion is my power steering system is in need of repair. Mine is too heavy compare to '86 and '87 that I test drove. I'm gonna check the pulley and if the size is correct, I'll be in the junkyard this weekend. Any advice is welcome and will be apreciated. And of course I'll be greasing all the fittings of the front suspention including the rear.