Rear structure

[Waterloo]

No, the oil pan does not have to come out. If your clutch is looking good, two years old, depending on miles, I would leave alone. That new clutch is more than likely the cause of that rear structure leak. That rear structure is your transmission mount on a ProStar, there are no other attachments to the transmission, just that rear housing. The housing gets jostled around when a clutch is installed, and that upsets that seal, the reason it is best to do the rear structure when installing a clutch.

Up to you on dropping the oil pan, that is not a difficult job, and once off, the pump is right there. Two to three hour job at most in a shop. Me, say four hours with beer breaks. The oil pump, not the rear structure... ;-)