Yes, it does, and I was surprised too.  It runs from the metal box to the
chassis somewhere under the floor, so I'm hooking a new one up to the rib in
back of the fridge.  It seems like 10 guage should be enough though.  I
think the theory is to not have the ground wire melt first in case of a
short.  Who knows.

Stuart

And to the original question, I think a GFCI is a good idea.

Does the Westy really have a 6-ga bonding wire?  I'm surprised they'd use
one so large (but I know zip about Codes...).

Yours,
David