Friends, Please drop your suggestions and methods for stopping squeaky trucks. Some pivot cup wax did the trick but always seems to be temporary. Any long term solutions aside from getting riptides?
I have used a few things in between parts, mainly wax now as it is simple and easier to apply and doesn't make a big mess, but as you said, sometimes the squeaking comes back a little too soon.
Others have put a thin coating of bearing lube or sewing machine oil on the hanger pivot nub, or one drop into the pivot cup and squished it in, which seemed to work well enough too.
If you can work out what is doing the squeaking, then it is a bit easier to sort out. More often than not the pivot cup or pivot point, but also the bushings / washers and sometimes even the washers / kingpin nuts, so a little wax on all contact surfaces and most if not all noise stops.
It can make the trucks feel a bit more loose too, but using a bit more wax on the pivot cup area usually did the trick for most boards I had worked on for people, including my own.