While walking around the auto section of Walmart last night I saw a Mini 3-Gauge set. I thought that it would work in my 73 Dart Sport gauge cluster. With a little work this is what it looks like now.
I thought about doing that but I put the miny cluster under the dash instead. Being that the panel is basicaly flat, a berson could rig somthing up with VDO or maybe stewart warner gauges to get them all to mach. But, it looks good and probably works better than original equipment.
I did some checking on the internet and the fuel gauge is as close to the other gauges as I could fine. I would have liked to have had a 1 3/4 gauge to match the other gauges. At least now I have all new working gauges.