ECM twice. See general comments.
Two leaky roofs (original one never leaked, it was just old so I replaced it).
Regular stuff like head gasket, oil pan gasket, timing belt.
This truck is great in the winter because of the 4x4 and fun to drive in the summer because of the convertible factor. However I found the seats quite uncomfortable on drives more than an hour.
The original roof was fine just faded so I bought an aftermarket one from Bes-top. It was sort of like a fabric material and after a few months of rain it created black goo on my paint where the water runoff was that couldn't be washed off. My truck got broken into and I got an OEM roof from GM (it leaked at the rear seam where the snap buttons are on the inside. I got it replaced and the same thing happened.
My major complaint and ultimate reason I sold it was the ECM. It went twice, about a month after I bought it and about a month before I sold it. $1000 dollars each time for a mechanic to diagnose the problem and then replace it.
"That is ridiculous."
I wasn't prepared to pay for a third one and maybe the next time it happened I could be in the middle of no-where. Be warned, after reading some other reviews I think this was a problem on some models.
Writer is correct, ECM is a problem waiting to happen on all these through 94, and many other makes of cars as well. But it is an easy and cheap fix. Don't go to a dealer! The ECM is in a black box up behind the pedals. Easy to replace yourself. Go to ebay, and find the guy who rebuilds them for 65 bucks, return shipping free! Or buy one of the many rebuilds available on ebay or elsewhere for 150-200. It is a shame to let this problem prevent ownership of an otherwise handy little car. Good luck.