My 92 4x4 F-150 was all over the place too I replaced the ball joints wheel joints tie rods bearings hubs coil springs gear box, replaced everything. Still was all over the place. Three different shops couldn’t find it either. It turned out to be the front tires. The belts weren’t broke or anything but I had to new tires put on the back and the shop didn’t rotate the back tires to the front correctly and they were worn and out of whack just right to make the truck wander all over the place and to feel like it was very loose. Hope this helps you.