I've had an oil leak since I put this engine in. PITA. Changed all kinds of gaskets but could never stop or really isolate the source.
Lately, it had been getting worse. Truck was on the rack for new U-Joints, and this time I could see the source. Weeping around one of the plugs in the filter adapter. Ah HA!
Tightened the plug a turn. Went for a ride. Now it is leaking worse! Removed plug, doped and reinstalled. Test ride. Now really bad. Back on the rack. Start engine. Aww $hit. The adapter housing is cracked. Must have been from the start. Made it worse when I snugged up the plug.
I happen to have an extra housing on the shelf. Debating if I should pull the engine to replace or drop the front axle and try and do it in the truck.