Guys what is the trick to getting a set of AC Delco plug wires to stay on the distributor? I bought a set for my 90 GMC Sierra 5.7l a few years ago. I had the same issue. I push and push to get the wires onto the dist but they just will not click on or stay on. I took them back and bought a set of cheapos from Autozone and they worked fine for a few years. Last week I bought another set of AC Delcos. Same exact problem. They will not click/snap onto the dist and they will not stay put. I have no idea what I am doing wrong. Are the AC Delcos just not made right? The dist cap is also an AC Delco. Any ideas?