Th most common cause is a bent wheel. It can also be caused by a loose lug nuts, a loose or worn out bearing, or a tire that is out of round. As this is RWD, it can also be a bent rear axle.
Bent rim. You may rotate it to a rear wheel to reduce or eliminate wobble.
your bearings maybe gone.
loose wheel lug nuts
Unbalanced wheels or a bent track rod
The wheel bearing
Rear wheel drive, 4x4 is dominate rear wheel drive
sounds like u have a bad cv joint
possible warped brake rotors. have a reputable mechanic check them.
Rear wheel
Rear wheel with an option of all wheel drive.Rear wheel with an option of all wheel drive.
The steering wheel wobbles, because of the unconditional pressures from the ground that is adjusted at speeds when it reflects gravity.
The 2003 Ford Explorer has rear wheel drive.