I intend to weld up the drain holes on my diff/axle housings as i keep bashing them on the rocks and unthreading the plugs. With my 60 when i did this I just used a lower stud to drain oil. I'm thinking about welding in these diff fill plugs sold by RuffStuff. I'd want to position them where I can get a hose down into the bottom to suck out the old oil.
Ruffstuff Oil Fill Plug
Check out the deal on Ruffstuff Oil Fill Plug at RuffStuff Specialties