I have a 1988 Pathfinder SE-V6, I bought it in the spring of 2017 and it had 316K miles on it. I have limited knowledge of its past ownership or maintenance history, and what I do know is only word of mouth. The transmission was replaced and had 500 miles on it when I bought it. I have done a little bit of maintenance on it so far, most which is regular scheduled maintenance…
-Replaced timing belt
-Replaced water pump
-Replaced Drive belts
-Replaced PCV valve
-Had to make a new line/hose for the PCV valve, being that that part was discontinued
-Replaced Center case oil seal on the transfer case
-Replaced the windshield (had to weld and fill in a rust hole where the wind shield in mounted so that the new one can be installed with a proper seal)