Window Crank Knob Wobble
If the little round knob on the end is the only problem just repalce the entire handle with one from rear of a 4 door. If the bearing assembly in the regulater has the wobble it can be replaced too. Drill out 3 or 4 rivets . Same source for a much better part. Rear windows were rarely used and the rear door is much easier to rob parts from.