dryer makes a screeching noise

Marco,
There’s a few things this could be. We typically install dryer kits: 4392067 which include a belt, idler, and rollers to alleviate any possible noise from those parts. But you could replace them individually if you think it’s just isolated to a specific issue to one of them. I’ll add the kit part number below for you and a link to a repair video that should be helpful. If you find the issue to be something different let us know and we’ll further help you diagnose.