Well, I went ahead and did them, I forced the fluid out with air pressure; air goes in, fluid comes out if all is right... Bit rigged up, but it worked for the time... Next time, I'm going to go ahead and take off the cover. The only reason I did not was because I was not sure about the silicone, but since I now know that I do not have to wait a day before filling, there'd be no reason why not to... Incidentally, my fluid was dreadful... I was not sure what it was supposed to look like, but it looked like mud when it came out. With swirls, and chunks, but no water (thank goodness). And when I found that it is supposed to look like vegetable oil, I was not happy, as I had them done a year ago. Jeep's accelerating a lot smoother now. Thank you all for your help and advice...
Oh yeah, and I did find a tool that would be of great help... I did not realize, when filling both the rear diff, and the transfer case, that there is really no way to pour the fluid in, due to both the height of the hole, and tte position of the gas tank. I got this little pump, looks like what you would use for hand soap, for pumping in thick fluids and such... Got it after, would have been really handy during... But, it's a learning experience. Thanks, all, for being so helpful on this forum
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