Losing oil pressure under load
 

Hey guys, I have a 1994 grand cherokee limited 4.0. After a night of wheeling her pretty hard, I don't seem to be getting oil pressure to the top
End under a load. At idle it sounds fine, but accelerating it rattles pretty bad. I replaced the oil pump and sender. Any ideas?

Oil pumps don't make pressure, they make the oil flow. It's the tight clearances between the bearings and journals that make the pressure. If you're hearing rattling under a load it's too late, the bearings are shot.