I have had both ( 84 and 95) 4x4 with diesel motors. I can´t comment on your motors but my 84 1500 with a solid front axle was not very comfortable and the brakes where terrible. They would heat up and fade away on long downhill grades with some weight on board. It scared me more than a couple...
Wow! Nice find. I used to own a 1972 C20 4x4 manual 4 speed with the gas guzzling 350 v8. Great memories of that truck with an Alaskan camper in Baja. I had saddle tanks installed for more range. The thing was a tank!
Sold my 95 sub with 315,000 miles miles on it about 5 years ago. Only thing I did was relocate the pmd on a heatsink in the front bumper and put a 4 inch turbo back exhaust. Great truck. I don´t miss filling the 42 gallon tank though;)
I don´t know if you have the same super low oil pan that I did on my 2005 Jetta TDI? If so get a good skid plate fabbed up pronto. I took my oil pan out 2 times driving on streets and highways (viva Mexico).