John is right, the fuel gauge is the only electric gauge in the truck. Get a step down voltage reducer and it will work just fine.
The oil gauges read to 30psi but will work with late model engines, mine has for 7 years. I know it has at least 40 to 50 psi oil pressure at road speeds, and it drops to 20 when hot at idle so I don't worry about what is truely has. As long as the needle moves, it good enough for me. GMC's used a 60psi oil gauge that will bolt right in your Chevy gauge but the decals for the faces are different colors. If you can find a restoration shop that makes there own decal faces, you could have one custom made. I have one of the gauges, but I'm to cheap have one made. One of these days I will figure out how to do it with a scanner and printer!
I had to have the water temp gauge rebuilt with a longer probe line to reach the front of the engine, but it works just like the old one.
Joe
