A common problem - Bad front wheel bearing on 996TT
996 Turbo / GT2Turbo discussion on previous model 2000-2004 Porsche 911 Twin Turbo and 911 GT2. Sponsored By Vivid Racing
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A common problem - Bad front wheel bearing on 996TT
We've seen quite a few of these now. It seems the 4WD 996 cars are prone to front wheel bearings wearing out. If you're taking your suspension apart and have a chance to try this, spin the hubs once the CV shafts are disconnected.
If it spins too easily, and especially if it makes noise, it's a good idea to replace it because the bearing is worn.
Here's an example of how it should not look/sound on a 996TT. This car had about 30,000 miles. We've seen them on cars as few as 20,000, but it really depends on how and where it was driven.
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Dan Kennedy
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I've done both of mine 2000miles ago as a precaution when doing the control arms and a spindle. Fun job
How often do the rears go out? I know the bearing itself is substantially bigger.
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Ive only seen the rears go out on the higher milage points(70-80k) and that I wouldn't even call that common. Unless your running a 20" wheel in the rear of a 996 then they would wear out a little quicker, but no worries if you have not had any problems yet.
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Whenever you guys are doing suspension installs and removing the front suspension you might as well go the extra mile and check/replace those
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Ive only seen the rears go out on the higher milage points(70-80k) and that I wouldn't even call that common. Unless your running a 20" wheel in the rear of a 996 then they would wear out a little quicker, but no worries if you have not had any problems yet.
hmmmm. So the wheel bearing knows you are running 20 inch wheels? pretty smart bearings
It has nothing to do with tire and wheel size...it is moreso related to tire and wheel WEIGHT; however, unless you have steel chrome wheels, and run flats, I doubt it would affect the bearings at all.
Tracking the car, or pothole prone areas will expedite wear, not aftermarket wheels, so long as they are not excessively overweight
other then symptoms in the video has anyone noticed anything while driving? shutters ? of course there is always the grinding noise as the bearings have ate themselves up.
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other then symptoms in the video has anyone noticed anything while driving? shutters ?
this is what I would like to know too.
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other then symptoms in the video has anyone noticed anything while driving? shutters ? of course there is always the grinding noise as the bearings have ate themselves up.
I drove mine with a bad, very loud, front right bearing for a few weeks. You could not tell by trying to move the wheel itself - it felt very solid. I autocrossed the car for a couple of days in this condition and didn't notice any change in handling. BTW, this is not recommended. Of course, when the wheel starts to get loose or one of those bearings shatters, you will notice a change in how it handles.
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'02 996TT, Seal Gray. JRZ RS shocks, Eibach 500#/700# springs, DAS Sport bar, Euro GT3 seats.
My 02 had the exact same symptoms at 20k miles. Seemed kind of early on for that type of replacement, so I chalked it up to a possible pothole in the road at the time.
A common problem - Bad front wheel bearing on 996TT
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