No sir. The board on the back of the gauge is held by 2 bent tangs. the slither of metal for chassis ground is also captured here. If you want to lift your temp gauge or any other 2 post gauge from any other panel you will find the housing cut away so the gauges are not chassis grounded. No slither of metal found or required. Only current path is through the 2 posts. ONLY gauge that requires a chassis ground is the 3 post gauge with limiter inside. These housing have a unpainted spot where this slither of metal meets the housing.
