I dont have a place and I am kinda far or I would help out. It is pretty easy getting the fluids out of the diffs, the front can be a challenge to get fluid back in depending on what you have to use. The transmission service should be easy, some you had to lift the trans up a little off the cross member to get the pan off though. I wouldnt have the trans flushed if you have a lot of miles on it and havent kept it serviced though. I was a GM automatic transmission tech for 9 years so I have done a few.

The 4L60-E is my favorite money making transmission