Guage problems

[72chevyLWB]

When I put in my tach cluster a while back two of the guages don't work. The Temp and Gas guage don't work. I got the guages out of another truck and they worked in there. Also the gas guage is out of my old cluster and it worked fine before. When I put it in I also made sure all the bulbs were good and I think two of them aren't working. What could be wrong? is the printed circuit shot? it looked fine. I am also getting no power to the gas guage itself and when I ground out the temp guage it goes way over to hot