Join Date: Apr 1999
Location: Chugiak Alaska
Feedback Score: 0 reviews
I hate to answer a question with a question but more info would help. So the question to start with is do you have the truck in 4x4 mode? If you shift the transfer case to 2wd and manually unlock the front hubs the system will be disengaged. If this solves your problem I would look at the front axle U-joints at the front hubs. Check the front driveshaft also while you are under the truck. A leak in the vacuum line will not cause your problem. When you say you had entire front end done. What did they replace? Is this a manual or ESOF transfer case? Manual or Auto hubs?
1999 F350 AUTO 4x4 CC LB DRW 4.10