I currently have two. My current DD, which is a 1987 regular cab shortbox with a 2.8L (yes, a 2.8L), Toyo-Kogyo 5 speed combo. It just hit the 425,000km mark yesterday, but obviously not on one powertrain. It took three engines and three transmissions to get to that mark. However, the clutch has lasted since I first swapped the 2.8L engine in at 163,000km.
My other truck is a 1988 extended cab. It is getting a 1987 2.3T, Mazda M5OD combo along with many other goodies. I am hoping to have it on the road some time this summer.
I am also eyeing a 1990 regular cab long box that has been sitting in front of my house for the last six months. I have left notes on the windshield, but no one has called.