SUN Gauge ID

[67L78conv]

Going through and trying to clean out the garage and organize what I am keeping and get rid of what I am not. While doing so came across several gauge pods and generally ID their ages and values but cannot remember what this set was in when I got them. Anyone have any idea what year range they may have come from and do they hold any kind of value to anyone. The gauges were working when I removed them but I sadly have no idea what happened to the temp sensor so it just has the cable for it. I am thinking 80's and worthless but that is just me, prefer the older type myself.

Any help would be appreciated.

Thanks