I rendered my opinion based on reading the information you provided about the problem, and the amount of time I've had to personally observe, inspect, and investigate the problem. Due to the extremely short amount of time I've spent personally on your vehicle, there may be wide variations between my opinion of what may be wrong and reality.
If you want a more accurate appraisal and an estimate on how much it will cost to fix it, you'll probably need to get someone to actually look at the problem, instead of asking someone 1400 miles away to diagnose it by reading a short written description on the internet.
2001 Ranger XLT 4.0L SOHC
Silver Frost w/ Dark Graphite interior
Summit 3" Body Lift
31x10.50 A/T tires
Explorer overhead console
Explorer auto-dim mirror
Aux1 & Aux2 inputs on factory AM/FM/CD/Cassette
Door-dinger silencer button
Seamless retractable roof and passenger-side ejection seat with steering wheel mounted controls and safety interlock