At your next tire change give some thought to having “dually valves” installed. The outside stem is the shape you want/have but it’s all built into a single metal valve. I.e. you won’t need an extension that has to press the valve on a regular stem and can’t work loose or turn around. One fewer failure point. The inner stem is simply a very long stem (like 8 inches) and protrudes from the outer wheel or cover for convenient access. It also makes using a TPMS system much easier. I’ve had them installed on my last three coaches and consider them well worth the cost.
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