Got a set of Deluxe gauges several months ago and finally got around to putting these in. You can see the changes. My car didn't come with a tach. What the deluxe set up does is gives me a tach where the FUEL/TEMP gauge sits. I ad to take apart the cluster and remove the FUEL/TEMP gauges and screw in the tach and hook it up. Then the separate pod for separate FUEL and TEMP gauges gets screwed in right where you see it. Luckily, they made cars "plug-n-play" back then as well. The dash is still a wreck as I just got it in and haven't the material to put the dash back right. I just needed/wanted to get these gauges installed.
Before and after pics to follow. I'll get better ones in the daylight as the flash messed these up. Later, QD.