Had a pretty good leak, tracing it back to the op sending unit at the crimp to the black plastic p.  I replaced it. I had to remove the socket bracket for the clutch pivot  ball and the oil filter.  Also found oil coming from the rear valley cover which I replaced with tapped in bolts.  Added a PVC valve and blocked the road draft system
The final issue is at the oil pump feed. Seems the big nut gets loose.  Maybe I over tightened it.  
To find the leaks I jacked up the front placed jack stands on the frame and chocked the rear wheel.  Removed the clutch cover.  Cleaned everything up with brake cleaner then ran the engine for ten minutes at 1500 rpm.   
Just glad it was not the rear main seal.  

Richard

Hi Richard, On the oil pump feed ,Check out my post on page 2 here. It didn't get much attention, but it is an easy way to fix those leaks on your oil pump !  I did ! and You don't have to remove your oil pan as some of the so called experts say .........   Mike

Mike,
I can't find it.  Please advise
Thanks

Just click on page 2 in technical on the top right of the page
& scroll down to oil pump rebuild............

Here’s the link to the oil pump thread to which Mike refers.
http://forums.y-blocksforever.com/Topic130561.aspx
 
By loosening the large nut that holds the oil pickup tube tight to the oil pan, there will be enough wiggle in the oil pump inlet tube to remove the oil pump from the engine without having to remove the oil pan.

Lorena, Texas (South of Waco)