I know this thread https://farmallcub.com/community/threads/how-to-make-a-cub-gas-gauge.79090/ is how you can build one but on the other hand has anyone tried one of these https://www.ebay.com/itm/394405500151 from India? and if so, what did you think about it, work ok, fairly correct measurement, decent quality etc? The one above states for a 7-inch tank height for a cub and this one www.ebay.com/itm/393578609616? for a super A or super C states 9-inch tank height. Not sure how there measuring tank height but mine is approx. 9 inches the where the cap would seal. I'm guessing the 7-inch would show empty before it gets so low you actually run out.