Worked on gauge on my 56 truck today i had installed a sun-pro fuel gauge but it would go to half full and stay there. didn't know it wasn't working properly until, yep you guessed it i ran out of gas. Found out i had ordered the wrong one, with this type of unite you have to buy the sender for it. so couldn't find a sun pro so i had to buy a auto meter and could not get it in black rim so i had to paint it. but turned out great and works now.