I've seen a couple of modified Sherman chassis still doing duty on highway construction in BC. One was the early vertical volute suspension type.There's another Sherman chassis parked beside the road in Boston Bar, BC which has been heavily modified as a crane. Most of the original hull is cut away and about the only thing still recognizable is the suspension and track.
There are several in the North Ok that are being used for running long lead operations. Still running but not many people know that they started life as main battle tanks.