Oil On Firewall/FLoor Pan

[Longhorns13]

I have been reading about the common oil leak spots for the 7.3. I’ve been searching for specific tale-tells that give you the exact area of a leak. I first noticed oil in the cab under the accelerator/brake pedal. I was vacuuming the floor and when the carpet lifted up; I saw a collection of dirt/oil/grease under the carpet. I cleaned the area and a few weeks later, oil again. Got under the truck and found good amount of oil on the driver’s side firewall down to floor pan. It’s coming in the cab at the seam of firewall and floor pan. Oil is also on drivers’ side frame rail and front drive shaft. May be dripping on the drive shaft and being slung onto everything else. No oil on ground, at all! Anyone ever seen this?