1975 Dodge Dart Idler Arm

Well, I changed out the parts. I ended up removing the passenger side motor mount bolt, jacked it up a couple of inches, and the idler arms was gravy to get off. The Pitman arm on the other hand was a different story. First off, I HIGHLY recommend to use the three claw puller and not that little rinky dink two claw; the pitman arm just laughed at the two claw. Secondly, have a four inch angle grinder available. I had to cut into the pitman arm. Doing so not only heated the metal up so it expanded, a little, but it also weakened it. I was very careful in doing so as to not grind into the spline.
I ran into the same problem, and realized what a dumb assembly procedure that was to install that bolt, but I suggest removing the bolt and arm after removing motor mount, leave it up, install the idler, and reinstall the bolt from the top. Avoid the bolt coming loose and extra work involving drilling for a cotter pin . My problem is removing the darn pitman arm bolt with my air impact gun, just came loose a little, but won't come off! soaked with WD-40, but...I don't know. any other suggestions??:axe: