Was going to drain and fill but my fill looks to be blocked by the exhaust, is there a different location to fill ?
Use the vent hole. (You can clearly see the silver vent deal in your photo.) The vent sets on top of the t-case right above the rear output.
From the picture you posted I can see through to your dash so I assume you have your tunnel cover removed. The vent plug is a great place to dump oil in but don't over fill it will come back out through the vent if you do. It should take about 2.5 quarts to fill.
I use Valvoline Vr1 straight 50 weight for my transmission and t-case.
Most parts stores will have a gear oil pump that will fit a quart bottle. Run the hose up to the fill and pump away until it starts to run out.
Even with the rear fill plug that is a simple way to do it.
Thanx guys for the quick responses.
So i drain the old xfer fluid and then close it off. Should I then remove the fill and use the vent to fill it up and as soon as I see it leaking from fill I should be good to go right?
You aren't wrong. They are threaded. That's just Jay being Jay.
I used to mess with all these backwards ways of filling a t-case or tranny, until I found this. It's an $8 multi use transfer pump. Will fill the t-case or tranny in 30 seconds or less.
Just spend the $8 and save yourself hours of frustration and spilled fluids.