For those of you scoring at home, there are no suspension bolts, pivots of
any kind attached to or passing through the engine cases. I believe when
people say "engine cases" referring to rear suspension pivot points, they
really mean "frame." The GTS engine does not have any suspension related
hardware passing through it or integrally attached to it. (Dirt bike engines
come to mind as engines that have the front swing arm pivot bolt passing
through the engine cases)
On a similar note, as I am undertaking my annual preventative maintenance on
my suspension, I found corrosion on the long collar that is the inner bearing
races for the front pivot axle of the rear swing arm. In the future, I will
be brushing a light coat of grease on the outside of this collar, which is
inside the front of the swing arm, to prevent corrosion build up there in the
future.
RSRBOB