I gave up finding a factory tack and bought a used Autometer 5160 Pro Comp dash mounted 5 inch dia. tack. I am installing it in my 1983 Grand Prix and want to mount it where the original clock was mounted, flush behind the black faceplate not sticking out further than the speedo as we used to do in the 60s/70s with after market tack installs.
Has any Forum member ever done this install in a G body dash?
The 5 inch tack face fits perfect against the back of the black speedo/clock faceplate (under the clear plastic lense) and the black tack faceplate with white and dark yellow rpm markings match the speedo marking pretty well.
My install issue involves the best way to mount the tack in the factory dash components. The factory clock fts and mounts in a light green colored plastic mounting bracket that also holds the speedometer and idiot light cluster. The clock mounting area has plastic pedistalls sticking out of the back of the bracket to hold the clock. These pedistalls are too close together to put the Automerter tack in without to my thinking, cutting the pedistalls flush with the back of the bracket with a Dremmel tool.
Then, the tack guts will fit, but then I need to actually hold the tack in place. One thought is to epoxy glue the tack face to the back of the black faceplate which would make a solid mount. The 194 instrument light bulbs that back light the clock would I think be best removed as the tack has its own internal lighting.
Am I on the right track with this install? Any experienced feedback would be most appreciated before I start modifying my dash!
Mike Baker
Has any Forum member ever done this install in a G body dash?
The 5 inch tack face fits perfect against the back of the black speedo/clock faceplate (under the clear plastic lense) and the black tack faceplate with white and dark yellow rpm markings match the speedo marking pretty well.
My install issue involves the best way to mount the tack in the factory dash components. The factory clock fts and mounts in a light green colored plastic mounting bracket that also holds the speedometer and idiot light cluster. The clock mounting area has plastic pedistalls sticking out of the back of the bracket to hold the clock. These pedistalls are too close together to put the Automerter tack in without to my thinking, cutting the pedistalls flush with the back of the bracket with a Dremmel tool.
Then, the tack guts will fit, but then I need to actually hold the tack in place. One thought is to epoxy glue the tack face to the back of the black faceplate which would make a solid mount. The 194 instrument light bulbs that back light the clock would I think be best removed as the tack has its own internal lighting.
Am I on the right track with this install? Any experienced feedback would be most appreciated before I start modifying my dash!
Mike Baker
