will transfer case in my tahoe cause truck not to shift

But it make that loud noise

Should I go underneath and check 2 see if the transfer case is ok ..

So that's what i need then transfer case or what.how much r they used at junkyard

Will a transfer case from a 2003 tahoe for a 2002

Yep

Have a 98 chevy Tahoe with auto 4x4 option. Looking to see what years I'm can interchange from to get a fix on my tcase issue.