A quick how to up grade your lighting. Temperature is the easy one. Just take the back off your dead fuel gauge. Just swap the back plates. I polished the inside to get the most reflection I could behind gauge. 75-76 combo case has NO paint on the inside so you should have great reflection. On 73 you could remove the inside paint. Fuel gauge is a little tricky but not too hard. I used the bulb holder out of an old gauge. Gently pry it out trying not to damage it. Take fuel gauge back plate and measure over for hole. drill hole using small step drill. Clean out hole and insert bulb holder. gently bend it around hole. Take the silver rubber holder and tap it in to place so it acts as a reinforcement. Make jumpers of bulb harness wires for extra lighting.