My dad had an 89 ranger with the 2.9 OHV (the 4.0's predecessor) with well over 300K on it (it was at 38*,*** when he sold it). My 4.0 has 187K on it, and all it needs is a new valve.
Routine maintenance is all they need.
92 Ford Ranger Supercab XLT 4X4.
Not a ton done to it, but it's nowhere near finished
05 Chevy Silverado 1500 W/T 4X4
Way too much done to list and it's also not even close to done
"The only woman I'm pimping from now on is Sweet Lady Propane. And I'm tricking her out all over this town."