FYI.. Hopefully this info will help someone out in the future. If you ever have to replace your control valves on the 610, I may have stumbled onto a inexpensive replacement on the "VEVOR.com" website. I found two control valves that look almost identical to the ones on my 1974 Bobcat 610. Attached are some photos of them as well as my control valve. Hope this helps, and feel free to copy and post on other relevant threads
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