I finally got my 1960 BT7 on the road and am cleaning up details. The fuel gauge is giving me fits and I discovered on taking it apart there was a broken wire. Bought one and discovered it too doesn't work. My question is: Are the Smith's gauges mechanically compatible between the AH, MGA and Triumph? In other words, if they fit in the dash hole will they work? They all look the same in pictures and seem to be the same size?