Just to update;
I did the lube oil change..the job is quite simple..you need a 10MM hex allen drive bit to remove the drain plug and fill plug..
A hand lube pump
and about 2qts of lube oil..as stated..I used Red Line 75w90 synthetic gear oil...
The rear differential is a little tricky pumping it in the fill hole, but if you go slow, you get about a qt in before it starts to dribble out.