Manual disc brake master cylinder?

If that is the case, then don't buy it. I thought the cover may just be symmetrical over 2 different sized reservoirs but get the actual big/little reservoir model. My oversight on believing their applications.

maybe this one>...Raybestos MC36412. Just has pics. specs over to a 76 Volare
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The brakes actually came off a 1980 Aspen so maybe I’ll check some of those out. I just didn’t know if it would bolt to the firewall or if there would be issues with the rod.