Back in January, I sent my 1967 230 SL Tachometer to Palo Alto Speedometer for a re-built. I do not remember if the back case of the tachometer was rubber or metal. When I received the rebuilt Tachometer, it has a metal back case as in the photo. Not until now, when I attempted to install it on the dash, it did not sit right, it did not flush with the dash’s face. I tried every which way without success. After looking at the picture in the manual, I discovered the configuration of the lights on each side is different than that in the manual (photo attached). The holding bracket is not positioned high enough to give a clearance to the cable connection with the Tachometer. It seems that the holding bracket does not belong to the metal back case tachometer. That makes me think that my original tachometer could have a rubber back case for which the two light are positioned higher than the one in the picture. Is anyone having any thoughts or a fix of this unusual situation?