sawood

well this is weird. just noticed the other day as i traveled along i am hearing this whirly bird sound echoing off this wall i was passing. Its not squeakers from brake pads, and not engine cause i turned it off while rolling along and noise still there. apply brake - no change. Sound dies or slows down as i just coast out of gear, so not drive train either. When finally stopped, sound stops as well.

do really bad bearings do this? i have 48,000 miles an 2004.5 2500 auto, sb, diesel, slt, no mods, and cant figure this out. Truck still runs great and mileage has been around 17+ mpg. any hints to this will be appreciated.

2004.5, 2500, auto, SB, Diesel, slt, no mods.

thanks in advance

chromegrill

I would say double cardon in the front prop shaft

SBishop

U-joint.....

nivram

48K miles same tires?????????????
I have heard this with worn tires, WEAR bars some times will cause this dumb noise. Just a thought.
nivram

hotmod660

U-joint Just had same problem yesterday. Rear joint was bone dry. Repaced both with precision 351. @41,000 miles

sawood

That was what i thinking today as drove this squeaky whirly sounding truck down the road -- U joints! Now its confirmed - thanks hotmod660! appreciate the help guys - over and out!