I just finsihed installing a 4.5 Inch lift and when I did my first highway test drive with it I realized that it had a growl coming from the front end and I took it to dodge they replaced the front drive shaft because the u-joints were out of it but the noise only went away about 80%. I just can't understand why that fixed most of the problem but the same noise is there just alot quiter?? Anyone think of anything?? They told me the shaft was gone before the lift the different angle of the drive shaft just pronounced it more. Thanks in advance.

 

remove the d=line from the front and see what happens. if its gone, its your line ONLY, if its still there, could be the output bearing on your t-case or your hubs, etc. process of elimination