A few problems with the 93' bonnie.

First off I know I need a transmission mount. And like when I ride at a steady 60 mph the car kind of shakes or vibrate. I changed the spark plugs, wires, and the bottom coil pack but this only worked for a couple of days. when I'm driving I hear a lil sqeak sound at the rear tire on the passenger side, sounds like somethin needs to be lubricated. I think that it could be my wheel cylinder because it needs replacing. Could anyone help me with these problems?