Possible torque tube bearing going bad? Use a stethescope to listen along the driveline near the point where you kinda sorta hear the clang bang rattle tink grind.
Just make sure the Squirrell is up on a lift or jackstands(well supported) when you put it in gear and try to listen. You're nice and slim Wendy, but not slim enough to go hanging upside down under the Squirrell with a scope in your ear.
