There are still some parts available if you know your part #
Genuine OEM Air Compressor Replacement Parts for Gordon Smith Products and other suppliers .
When I first started in the air compressor business in 1978 the company I was a road mechanic for worked on any make and model of compressor , including the Smith's and Grimmer Schmidt's with the 302 cu. in. Ford's .
The company took on the G-S line as the New England Distributor , but promptly dumped it as too many headaches .
Gimmer Schmidt is now owned by Chicago Pneumatic which is owned by Atlas Copco
Bandit