70 Duster Rallye Gauges

Beyond this fuel gauge having the gauge voltage limiter inside it, used gauges that do still work will very likely have sun faded screens and needles.
They are reproduced. The cluster of 4 new gauges might be costly but for what it takes to R&R this instrument panel repeatedly... (Replacing a 50 yr old part with a 50 yr old part?) they are worth consideration. It's not so much about your time and labor. It's more about how easy it is to damage something else during the R&R process. Good luck though