I've been looking on the forum for info on changing the lube in the rear drive. I have a 2004 LT with 40K miles that I bought used 18 months ago. I have had it serviced at Big Twin BMW in Boise (Good guys in my opinion) so they have done the lube changes etc. But, it seems like the gear whine is getting louder and I wanted to check, maybe change, the rear drive lube. After reading how difficult it was and descriptions of how to do it I realized that the description of where the drain hole should be on an '04 didn't match what is on my bike. The one on my bike has a drain plug at 6 and a filler plug at 9. Did I maybe buy a bike that had the rear drive replaced with a much newer one? I'd put in a photo if I could figure out how.