I believe 73- 75 or 76 had an amp gauge and 77 went to volt gauge. I posted this real quick as I was leaving this morning, will post better pics tonight.
I don't have the money right now, I already gave it all to @Capt Ron for a transmission and OD unit.Do you know if all the gauges work?
Second in line if @mrk5 doesnt take it.

I don't have the money right now, I already gave it all to @Capt Ron for a transmission and OD unit.
So it's all yours @MetalMulishaMarcus
So it's a race to see who has money first. Haha!