Metro: The plug in the X-fer case is 'frozen", can't loosen it to check the x-fer case oil. The U Joints on both driveshafts are being replaced tomorrow [I had a vibration problem, mechanic removed the front driveshaft and it was much much better, inspection revealed one bad U joint]. Lot's of advise seems to center on how to get this damn aluminum plug to loosen. One fellow , The Car Doctor on local NY Radio station recommended GIBBS Penetrant. Says it works chemically on the different metals to loosen what in essence is a "weld' created by the heat on the aluminum or that fact that when the transfer oil was replaced, the plug was not torqued or seated properly. Some people say Leave it alone, some say drill a new hole in the transfer case, some say put a torch on the metal. I'll elt everyone know more once the U joints are installed and the performance of the front transfer case is tested. Then we'll see about checking and/or replacing the fluid.A majority of the owners on here will say it's not necessary. They'll say, "I haven't changed it in years and it still runs like it's new."
They are the same ones, that when something finally does happen, WON'T come back on here and admit there is a problem. By then, they are replacing parts and guessing what the problem may be...:balls: