I really must have a horeshoe up my behind, in the 4 years my IDI was my DD, I did nothing but front calipers, a water pump, starter, alternator and heater core, and it was a rusted out hulk that had sat more or less abandoned in the bush before I got it, the resurrection at first involved a new set of injectors and a used IP.... The fan clutch on it doesn't work, hasn't since I got the truck, so, any summer towing got it pretty toasty, hell one day I was hauling snow and forgot I hadn't put the fan back on at about 28 degrees, the thing was at the L most of the day.
Outside of routine oil changes, it's had minimal maintenance, and wouldn't you know the dumb thing is stupid reliable. I've driven it with broken front axles, blown power steering pumps and lines, you name it, I mean minimal maintenance, I wouldn't have bothered fixing the power steering if I hadn't of torn the rag joint apart. Hell, I drove it a week with the water pump blown to the point it wouldn't hold any coolant above the weep hole.
It was a $500 beater when I got it, I threw the worst of my spare parts at it to get it roadworthy, and it was abused as such, and the thing just keeps coming back for more.
I have been absolutely **** with maintenance on my cummins and wouldn't you know it's thanked me with such fun things as transmission failures...