Please if anyone is out there has had a issue with there final drive contact CustomerService@bmwmotorcycles.com
and let them know of your issue according to them this is not a problem. Please also list your problem with
http://www.ntsb.gov/
this will give you the chance to make a differance.
I have a 2000 K1200LT with 46,000 miles and it has had the rear end oil changed with every oil change 5000 miles and the rear end/final drive went out.
If anyone out there has a final drive used for a 99 2000 of 2001 Lt please let me know murfs79@hotmail.com Thanks