I see the 2 valves under the plate on front. It is a model GCX25, the serial number is GX230-0154-7960KOF, looks like made in 7-91.
I will try the dis-connect idea first and then swap 'em if all else fails. Is anything going to fall down inside the case when you lossen them up? I may have time to do it this evening, I will post results if any, thanks for all the help guys!!
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