My dad's got an '04 2500HD 6.0L gasser with the manual floor shifter. About 55,000mi on it. Some towing, nothing more than 8,000lbs here and there.
Got a BAD vibration between 65-75mph, especially bad when accelerating. Sounds like maybe pump rub in the transfer case has let all the oil out, or maybe a bad u-joint.
Weird part is, it's supposedly been like this for about 5,000mi. 4x4 still works, shifts easily into 4x4, etc.
Got two videos... first, the vibration under acceleration (60-75mph); second, the shifter movement under acceleration (all speeds).
Any ideas?
[YOUTUBE]OW-o0cQKk1s[/YOUTUBE]
[YOUTUBE]yZJUJNSMtu0[/YOUTUBE]
Got a BAD vibration between 65-75mph, especially bad when accelerating. Sounds like maybe pump rub in the transfer case has let all the oil out, or maybe a bad u-joint.
Weird part is, it's supposedly been like this for about 5,000mi. 4x4 still works, shifts easily into 4x4, etc.
Got two videos... first, the vibration under acceleration (60-75mph); second, the shifter movement under acceleration (all speeds).
Any ideas?
[YOUTUBE]OW-o0cQKk1s[/YOUTUBE]
[YOUTUBE]yZJUJNSMtu0[/YOUTUBE]