Pinion Bearing Problem or Axle Bearing??
12-21-2015, 08:54 AM
#1
Staging Lane
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Pinion Bearing Problem or Axle Bearing?? My car has been making a humming noise in the rear of my 1997 Camaro, the faster I go, and I'm not sure which bearing is causing this noise. When I brought it to a shop to diagnose, there was a lot of uncertainty in their voice when they said that the axle bearings need to be replaced. If it is the axle bearings, I am willing to do them myself. My question is, is there a chance that the pinion bearings could be the issue? Do these things regularly go bad? And what can I do to test which bearings need replacing?
12-21-2015, 09:47 AM
#2
Realistically the proper way to diagnose the rear is to simply pull the cover, drain the oil, pull the axles then pull the carrier. At that point you can inspect EVERY bearing and part in there. Then you know what it needs exactly and can easily just put it back together until you get the proper parts. Good Luck Grasshopper.
If anyone tells you otherwise they are full-o-poop
If anyone tells you otherwise they are full-o-poop
12-21-2015, 10:08 AM
#3
Staging Lane
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Realistically the proper way to diagnose the rear is to simply pull the cover, drain the oil, pull the axles then pull the carrier. At that point you can inspect EVERY bearing and part in there. Then you know what it needs exactly and can easily just put it back together until you get the proper parts. Good Luck Grasshopper.
If anyone tells you otherwise they are full-o-poop
If anyone tells you otherwise they are full-o-poop
12-21-2015, 10:31 AM
#5
Staging Lane
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I think I will just start with the axle bearings considering that left seal is leaking anyway. Then I will go from there. If it is the pinion bearing (which you never know I guess), then I will do my research and replace it down the road. Thanks for the info!
12-21-2015, 02:50 PM
#6
If you want to point yourself in the right direction...... Bad/worn/dirty/poorly lubed bearings make noise and heat, you should be able to feel or temp gun which bearing it is (it will be significantly warmer).... And I am not full of poop...the last place I worked was manufacturing bearing grinding machines.
Last edited by Won-Ton; 12-21-2015 at 02:51 PM. Reason: Wrong I spell
12-21-2015, 04:42 PM
#7
You may also notice the axle bearing doesn't look or feel bad but the axle itself will be chewed up, replace the bearing anyway.