What would make my left front tire wear out of round? And on the left rear the outside lugs only are wearing on a slant in the direction of the car. Any ideas. I do get shudder when braking.

Theory 1: I had a set of cheap tires that did this and it went away after checking alignment and finding it was within specs and then buying a new set of tires (Wasn't too bad with a pro-rated warranty claim from the tire shop).

Theory 2: Your alignment somehow is messed up. (A recent event with a monster pothole maybe?)

Theory 3: Both. Maybe the front tire is suspect and the rear is getting chewed by the alignment being off.

Theory 4: Check the Balljoints, Tie-rods, Struts, and other suspension items. Usually a good alignment shop will inspect these before aligning the car.

Good luck.