I changed tires on the wifes Rincon and when I started to change the right front I noticed that there was a half inch wobble or better. What could cause this? I checked the others and there was no movement...I also noticed when I back up or move forward there is a clicking noise but its in the rear not the front. The clicking is more distinct when I turn either in reverse or foward. Im sure there not related but I could use some advice as to what to check.