I think the age of the belt at least thats what a lot of guys say here.
I'm going to just leave it as I really don't want to rip here apart so far I put 10K on her drove to Fl. 2 times.
Trying not to put miles on her anymore but its hard not to want to drive it its like a brand new GS 400 but the problem is I have to worry where I park it shopping carts and peoples doors hitting it.
Oh! and sorry not posting back to you I did not see yours.