I have a dumb question. but the other day I was up under my Ty and I was looking at the front diff and I didn't see a drain plug. I saw a bunch of bolts holding it together. do I pull the lowest of one of those? i did see the fill plug but no obvious drain plug.
I use:
75w90 synthetic GL5 gear oil in both diffs.
Synthetic Dexron ATF in the transfer case.
Non-Synthetic Dexron ATF in the Transmission.