A friend asked me to look at his 97 Ram 1500. It has a 318 with 124,000 miles and runs great, but he noticed his hot oil pressure was dangerously low. He had already changed the sending unit, then the oil and filter to no avail. I installed a master guage and confirmed his findings. When fired up cold, it has about 60 pounds of pressure. After a couple of minutes of driving it starts to drop and by the time it hits operating temp, it is about 5 pound at idle and about 10 at a 1500 RPM cruise. If you rev the engine to 2500 in neutral, it will jump up close to 30. The engine sounds fine and there are no ticks, rattles or knocks. I told him the only thing I knew to do was to pull the pan and inspect the oil pump. This truck has had very mild usage, and is well maintained, so it doesn't seem like a canidate for worn out main bearings. The vast majority of my wrenching is on GM products, so I'm not intimately familiar with the quirks of Mopar power. Is there anything obvious I am overlooking? Also, this is a 4X4 and it looks like I can pull the pan without picking up the engine, Does anybody know for sure?