I purchased my 4wd 1986 and 0 720 pickup about six months ago from a family friend who decided he was done messing with it for $900. It did not run. I had been looking for a small pickup that could get good gas mileage and haul around my tools for summer work (still working on the MPG part), I was looking at toyotas and Nissans and trying to figure out which one to go with and now I am sold on the Nissan/Datsuns. After messing with it for a couple hours we fixed stuff like spark plug being backwards and messing up the firing order and got it kinda running.
After getting it home we went to get fuel but it did not make it to the filing station and left us on the side of the road, so we eventually figured out it was the ignition control module due to information on this forum, so I bought one at Oreillys (oops) then after burning up three of them I asked for my money back and paid more for a descent one. It was still undrivably gutless so we advanced the timing all the way and cleaned up the carb and fixed air leaks and stuff, but it could still barely climb a hill. Then my mom was driving it across the bridge at rush hour and we figured out what was wrong, the timing chain tension-er was in the oil pan and she was high and dry. The valves had contacted pistons and it was sucking air from the exhaust and blowing it out the carb. I was gonna buy and 720 84 with a blown up trans to donate my trans to, but it sold before I made it to pick it up and out of sheer tenacity decided to keep going with this 720. So I had a friend pull out the 1985 engine and put in a used 1984 engine from a wrecking yard at 236931 miles (yeah it is on its third engine). Now it works most of the time. I did break pads a couple days ago and have a line on some manually locking hubs, new fenders, and I need a tailgate and a couple other things. I have made a couple posts since I joined a couple days ago, but I decided I needed a build thread as this is not going to be a quick and easy project. It still leaves me on the side of the road regularly (read about once a week), but it is a good first rig to learn on and thrash. What seats can go in these? Mine are shot and I will be making a run to the wrecking yard soon.