Well I got a 2000 Ranger XLT Super-cab with a 3.0 and 255,000 miles.
The only major work I've done, was replace the intake manifold gasket cause it was leaking water and replace the heater core, it was leaking also....lol but I think it went bad around 225,000
My truck is still running to this day. I drive it just about everyday, also.
Hope this helps
What do you want to do with your current Ranger?