Thanks everyone for the help!!!
I managed to change all the fluid yesterday!!
I went to my local parts store looking for the 13mm. The parts man offered a 1/2 plug but I declined thanks to your earlier replies which armed me with the knowledge to get a 13mm instead.
Got home and man, taking them plus out, what a chore!! I don't have a breaker bar and I didn't know how tight thet plugs were! I fought with the rear axle first the the transfer case etc. I managed to finally free the rear axle plug by going into an embryonic position, hugging the rear tire with between my legs and chest and pulling that damm wrench. The front was done the same way. The transfer came came loose by slowing putting pressure on the wrench with my legs.
Judging by how tight the bolts were , I don't think any of the fluids have ever been changed. Oh btw, all the bottom plugs are magnetized and were saturated with metal dust. Cleaned them up. The odd part. The front axle came out looking quite clean, almost new oil clean... Odd? The transfer case oil was brown , rear as well
The best tool I bought for the job, manual fluid pump. What a life saver!! One hose goes intake, one outtake and you pump!!!