In theory simply spring-lifting a CJ shouldn't change caster, assuming the springs have the same eye-to-eye length as factory and you don't change shackle length.
Many of us have used YJ springs for our lifts because they are 2.5" wide in front and provide a better ride. However, the front YJ springs are about 1" longer then CJ springs. Therefore caster angle does change when using these springs.
My 2.5" YJ lift required 4 degree shims to get 7 degrees of caster. It tracks and returns to center beautifully with this setup.
I have installed the 4 degree shim, and replaced the tie-rod ends. The original tie-rod ends were very worn and not keeping the toe end. While test driving the steering starts to return to center but not all the way. Plan now is to install a 6 degree shim and test again. Will post again after the new shim is installed.
Ball Joints are okay. Tie-rod ends are replaced, Toe-in is fixed. 6 degree shim is in place. Final part of the puzzle: Steering box was too tight. Loosened the load on the steering box by 1/2 turn and the jeep centers after a corner. Thanks for all the help.