Vehicle has 105,000 miles and wanders while driving, and turns to the left when braking. I have replaced the pitman arm, idler arm, steering gear box, brake calipers, rotors, and pads, all AC Delco new parts. When doing the previous brake job I noticed that the pistons in the caliper on the right side were stuck, hard to compress with the C-clamp. Also, there is a clunk or knocking in the front and rear when going over bumps or hitting small potholes The rear end seems to swing when driving, turning the steering wheel left to right. New tires and shocks were done as well. What could these problems be?