Detroit 14l turbo squealing noise

Yeah tiny bit of end play. Weird. Sounds like scraping the housing. Hopefully you can get some downtime to return it for another. Unless someone on here comes up with magical solution

 

Possibilities- Exhaust gasket, take a feeler gauge and try to slip it in around the exhaust port anywhere and listen for any pitch changes (while still cool), Bellows pipe inner metal seal either broken or missing, Compressor intake side should have an inner aluminum port seal ring (contoured) that's held in place with a metal ring or snap ring (groove), removed for rebuilding. If not installed won't hurt a thing but will whistle like the dickens.

 

Roadking96
I got the same sound I replaced the turbo and still doing it. I'm gonna check all gaskets and see if there's one broken.