1993 gmc jimmy front right wheel toeing in

i have a 1993 gmc jimmy 4.3 cpi 4wd.......and when i back up and turn the wheel all the way to the left it make a loud clunking sound and my right front wheel will tow in....but if i turn my wheel all the way back to the right it will make that loud clunking sound again and the wheel will go back stright.... i replaced the ball joints and its still messed up......can anyone help me???/

Do not drive it untill you find the problem.
It is ready to drop.
If that bad you should be able to see something very lose.
Keep your fingers and hands and feet and head out of the road and from under it
Have a look at upper and lower control arm bushing and mounting.
MT

its only when im backing out of my parking stall or if i turn the wheel all the way in one direction making a u turn....when i did the ball joints i inspected the control arms and everything else that was attached for ware but couldent come up with any thing but my control arm bushings were dry rotted.....but if i get it to pop and make the tire stright it will stay like that until i make my stearing wheel turns all the way in one direction...and vise versa for the tire towing in.........

They Only have so many pops before it drops.
You need to check it out before it drops.
MT

so you think i should start with the bushings??... and if thats not it what would i go to next????

Proper testing and checking before throwing parts at it.
Have a look and see where the poping or movement is.
Good luck
MT