Dodge Dart Pitman Arm

Thanks man! That's exactly what I needed to know. I thought i was strange that the shaft actually turned when I tightened the castle nut? Because, I read that it should take like 80lb of pressure to tighten it. funny I know. So, please answer me this. How the hell does a Pitman arm or idler arm go bad? If the washer is good and the spline is good and it's tight? It's ok right? Also, it's not the ball joints, because with the car jacked up if you grab the wheel and the Idler and Pitman flop around like pancakes on a Sunday morning at Denny's! Anyway, I took it to a bunch of old school gear heads at BIG O TIRES and they said they were totally sloppy. But, everybody says replace the! Why? They're not cracked. I'm just going to buy new bushings and castle and cotter! Right?

Thanks for all your help.
Greg