Dutchess

So i have been neglecting to address this but i figure i should at least ask before i'm going 70 and something under my jeep blows up...so there are two things...
1-there is a intermittent grinding/knocking directly under my 4WD shifter and if you hold the 4WD shifter **** you can actually feel it grinding/knocking. my guess is T-case but 4WD works perfect and it has been going on for a year with no problems...but i would dig some opinions!
2- when i crank the wheel left or right when backing up there is a huge pop form the front wheel area. its only ever one wheel at a time and which wheel depends on which way i'm cranking the wheel. And now its staring to do it when i crank the wheel when im going forward! but only if i'm going under 5MPH...my guess is wheel hubs are POS?