Mystery metal tank under bus
We have a 75 GMC Capenter Cadet. It has a strange tank in the rear.
Stamped on the tank:
3500 cubic inches
It looks like a small metal gastank with only one line heading up to the engine compartment.
I am thinking that it must be a vacuum canister? If that is the case why was it mounted so far back bedind the axle.
Any advice is appreciated. Thanks.