Ehatcher

iTrader: (1)

Well my car has been making a humming, kinda like a droning sound that i thought might have just been the tires and rims. well i got new tires today and the rims are in balance but the sound it still there. Its is relavent to speed of the vehicle meaning that the faster the car is moving the faster the humming sound... sounds almost like a turkey at high speeds. i was thinking that maybe my driveshaft might be out of balance. if so, could having the driveshaft out of balance tear anything up in the tranny? That sound has been there for a couple months , maybe even close to a year. Any help would be great.

thesource

iTrader: (60)

It can tear up the rear bushing and seal in the tail housing which will cause it to leak the fluid out and burn up the transmission . In more serious cases , I have seen tail housings crack from severe vibration in the driveshaft as well .

T A WS6 M6

iTrader: (1)

Are you sure it's not your axle?

thesource

iTrader: (60)

It could be a lot of things ....... if you are not mechanically able , you need to have someone that is good at trouble shooting drivetrain issues to look at it for you .

nasty96

yea i would check the tranny and rear end fluid ... does it vibrate or just make noise .. could be break pads the rivets..??? like has been said there are alot of things.. but check those fluids quick......

Ehatcher

iTrader: (1)

tranny is completely full of fluid. unhooked the driveshaft and there is no play whatsoever in the back of the the tranny. We pulled the cover off of the differential and pulled both axles. They look fine and rolled VERY true. Differential looked fine. Had new rotors and pads installed about 2 or 3 months ago. Maybe it is in the rim? There arent any vibrations at all... just that annoying *** sound.... it does go away when the car goes under load/accelleration or atleast makes itself less known illd go get my other rims out of storage and see if it is infact in the rim.

T-56SLPSS

If it was the rim you would feel a vibration. Run the same rpms in different gears and if the problem is the same at the same rpm its not the drive shaft. Fuel pumps make humming noises when they are going out but you would know if it was that before you turned the car on. It could be a worn input shaft bearing or a main drive gear bearing. Its most likely a bearing that is shot. It almost sounds like a fluid level problem to be honest but there are alot of likely culprits. Can you tell what part of the car the sound is comming from??

Ehatcher

iTrader: (1)

the sound is coming from around the right rear area. i thought it might have been a wheel bearing going out.. but we pulled the axle and it looked and turned fine. the rear end is full of lubricant. are their any other bushings or bearings on the right rear side of the car that would make that type of noise?

Ehatcher

iTrader: (1)

is it possible that my stock 104,000 mile 10 bolt is about to go poof?

xBROKEx

iTrader: (7)

yeah ive seen them go at alot less miles then that

PewterScreaminMach

iTrader: (7)

Sounds like your rear. And with that many miles on a stocker, I wouldn't be surprised, especially if it's been raced. Do you run drag radials?

Ehatcher

iTrader: (1)

it has seen maybe 5-6 1/8th mile runs. no hard launches and they have all been on street tires. When we opened up the rear, everything looked fine, rotated fine, there were no broken pieces. I don't know. I would figure that if the rear had been making this sound that long it would have given by now. Im going to take a fellow f bod member for a ride and see what he says

T-56SLPSS

It sure does sound like a rear end problem. And yes there are manny 10 bolts that have went with alot less miles.