Found out my front DS was broken. No idea for how long, i just started hearing the boot click. Swapped it with a nice pro comp shaft and now theres a weird grindy noise coming from the T case. I gets worst in 4hi. Haven't tried 4low yet. Took it to the nice fellars at 4wheel parts and theres no outer issues. They heard the noise coming straight from the T-case. They said its internal. Im still under warranty so hopefully they will cover it.

Any ideas what this noise could be??
Thanks