Hi everybody. I'm a new member and proud owner of a 1975. I have done lots of work on the gmc over the last 6 years, one ton front end, six wheel disk brakes, headers with stainless exhaust, full paint job, all myself. But I'm not good with electrical. Here's my problem. She has always started like a champ until about to hours ago after I fill the tank will gas at a local station. And now turn the key and the starter will not engage. Battery is good and everything else is fine. The generator light is on but that has been on for a couple years and it has started fine. My guess is starter silinoid to look at first? All help is appreciated. I'm writing this as I wait for aaa to arive.