hi all i got a 03 f150 with a t case problem i think in used to jsut pop out if i was giveing her climing muding so on so forth but as soon as i wood stop the wheels she wood go back in it is push botton but now in 2 high jsut driveing down the road im getting a vibration at 80 + i jacked up the rear end and late her run you can hear something in the t case jsut wondering anyone had barring problems i have had the locking forke done i have had everything checked i am a 310t truck and coach any info on this would be great thanks all