Hello - I have 117,000 miles on my XC70. The car drives great but the dealer informed me that the bevel gear was "leaking" again. The dealer resealed it at about 80,000 miles and about $800 of expense. They now say it is leaking again and want $2400 to replace the unit. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/mad.gif" BORDER="0"> needless to say, I would consider that a last resort.<p>I went to a highly recommended transmission shop. We looked at it yesterday and the lubricant in the differential seems to be a lower viscosity (more like motor oil) whereas I was expecting something more like a gear lube to ooze out.<p>1. What is the recommended fluid and change interval?<br>2. Is there a resealing kit available?<br>3. Is a bevel gear reseal something that I could do on my own?<br>(I'm not a mechanic but have rebuilt several motors and replaced transmissions before on slightly older and less high-tech vehicles)<br>4. Is there a good source for a rebuilt bevel gear unit or other option?<br>(I am not interested in converting to FWD)<p>This potential expenses and the probability that I will have to rebuild the automatic transmission within the next year or 2 (slight slip in very cold weather and occasional sloppy shifts) is making me seriously consider getting rid of this car.