I've had the same one as my daily driver for coming up on nine years now and they're great, providing you keep an eye on the tightness of the starter mounting bolts (at least every time you do an oil change) and sort the glow plug system out in early days (I've had a manual setup in mine for the last five or so years and have had zip glow plug problems.)
After nearly nine years I can't keep oil in mine anymore (it leaks out of just about everywhere) and like everything Chevy - whatever you touch with your hand is either completely worn out or next to completely worn out -- but for a truck that served the military since 1985 and then went on to a very busy civilian afterlife -- I have no complaints whatsoever over something like 300,000 miles on the same engine and transmission.
(I have a low-miles HMMWV takeout engine that's going to replace the tired CUCV one shortly, then I'll box up the CUCV one and rebuild it at my leisure for maybe another 300,000
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)