Diff and transfer case fluid change please advise
OK so I'm doing my diff's and transfer cases. I got correct fluid and located drain and fill holes. I've done these services before and were easy on my Ram. My question what method or pump are you guys using to fill them? They in tough spots to get bottle up there. The TC is atf so that flows easy. But the 75w140 oil is way thicker.
Thanks for info
Edit.for non elsd diff's 2011 manual edition 5 states 75w140 but 7th edition manual states 75w85 in which case I'll use 75w90 as readily available. Which should I use. Dealers can't seem to tell me.