Drivetrain Transmission, LSD, Clutch, Driveline, Axles...

Bad bearing in the tranny? HELP! :(

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Old Mar 14, 2012 | 11:31 AM
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daniyelru13's Avatar
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Bad bearing in the tranny? HELP! :(

So there's a problem with my LNF.. The tranny is making a weird noise.. as the sound is not gear dependent, doesn't change with engine speed, its consistent with wheel speed - and not a wheel bearing. I believe that it's the bearing(s) in the output shaft..

So my question is...
Could I be wrong?
How many bearings are in there?
How hard are they to swap with new ones?

Last edited by daniyelru13; Mar 14, 2012 at 11:31 AM. Reason: edited info
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Old Mar 14, 2012 | 11:57 AM
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From: Port Perry
removing and stripping a transmission is a lot of work. There are many bearings in the transmission. Its unlikely that you could pinpoint a bad bearing in your transmission, but its possible.

You say its not the wheel bearing? Not sure why. New wheel bearings will fail if the bearing/axle nut is overtorqued. 159 ft lbs is the torque on an LNF for the axle nut, using an air tool to tighten it will possibly lead to premature wheel bearing failure.
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Old Mar 14, 2012 | 12:01 PM
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Originally Posted by Powell Race Parts
removing and stripping a transmission is a lot of work. There are many bearings in the transmission. Its unlikely that you could pinpoint a bad bearing in your transmission, but its possible.

You say its not the wheel bearing? Not sure why. New wheel bearings will fail if the bearing/axle nut is overtorqued. 159 ft lbs is the torque on an LNF for the axle nut, using an air tool to tighten it will possibly lead to premature wheel bearing failure.
The reason why I know it's neither of the wheel bearing is because I've tested it. I raised the car from each side, and since I don't have the G85 option, it would mean that I don't have LSD. So slowly, I put the car in 1st gear and let one wheel spin. the sound came as soon as I hit like 3-5 mph.. Both times on different sides, sounded exactly the same..
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Old Mar 14, 2012 | 12:53 PM
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Originally Posted by daniyelru13
The reason why I know it's neither of the wheel bearing is because I've tested it. I raised the car from each side, and since I don't have the G85 option, it would mean that I don't have LSD. So slowly, I put the car in 1st gear and let one wheel spin. the sound came as soon as I hit like 3-5 mph.. Both times on different sides, sounded exactly the same..
Pretty sure all LNF's have LSD just for future reference
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Old Mar 14, 2012 | 06:35 PM
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Originally Posted by bluebalt07
Pretty sure all LNF's have LSD just for future reference
I thought you need to have the g85 option for lsd? I even made sure with a dealer that I don't have the g85 package...
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Old Mar 14, 2012 | 06:38 PM
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Originally Posted by bluebalt07
Pretty sure all LNF's have LSD just for future reference
Not true. It was an option.
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Old Mar 14, 2012 | 06:40 PM
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From: Port Perry
^^^troof. But the OP needs to get help diagnosing his problem. Internet doesnt work
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Old Mar 14, 2012 | 06:45 PM
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Originally Posted by Powell Race Parts
^^^troof. But the OP needs to get help diagnosing his problem. Internet doesnt work
what's an OP? haha sorry..
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Old Mar 22, 2012 | 03:28 PM
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Originally Posted by daniyelru13
what's an OP? haha sorry..
original poster
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