I have a 86 Comanche 2.5L auto 4x4. I went to go to the store the other day, an on the way home my oil preasure droped to 0 psi. So I shut it off an had a buddy drag me home with a Chain. I pulled the oil pan off an there was about a 1.5 inch pile of sludge in the bottom. I pulled 1 main bearing an 1 rod bearing. The main looked ok but the top rod bearing was down to the brass looking material. The rod bearings are standard, but the main bearing is .001 undersize. I have called every parts an engine supplier I know of an no one has a .001 undersize. Has any one here ever seen this before? Should I just get a standard main set an plastigauge it an make sure my clearance is ok, or do I pull the engine an crank an have the crank turned 10.10? I live in a apartment complex with no garage, so the easiest way the better. Thanks for any info you guys can give me.