If something might have happened to the oil pressure simehow it could have wore the main bearings. I had a 2001 Ford Ranger that somehow blew the front of the oil pan gasket out and this is what happened to it. My granddaddy used to own a paint and body shop and also done alot of mechanics. He told me just to get some straight 50 weight oil and put in it and it should stop. so I got 4 quarts of the 50 SAE racing oil by valvoline and a quart of lucas and it stopped. It ran like that for about 4 years til I totalled it out without ever having another problem. No matter what people say the thick oil works wonders. Thats all my granddaddy used in any of his. Its certainly worth a try before tearing the thing down
