The weld bung has an ID of about .47 so I drilled the barb out to .50 to make an unrestricted path for the PS fluid.

Before parting off the "barb" I added a nice chamfer to the weld joint.

I ran a 3/8th inch bolt thru the fitting to hold everything together for welding.

After welding. I know it's not real pretty but it will do the job without leaking..