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Unread 05-08-2010, 08:06 PM   #1
EBT531
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bad pinion bearing question

I'm pretty confident my front pinion bearing is going. I can hear a whine from the front on de-acceleration between 50-40mph. Right now you have to have the window down to hear it, so my question is how long typically before it totally goes? (1000 miles? 2,3,4?)

Do these things get louder as it gets worse?

When its really bad will the whine be at all speeds vs just the 10mph stretch I have now?

Anyone pay a shop to replace the bearings? I'm curious how bad the bill is going to be.

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Unread 05-08-2010, 11:38 PM   #2
CULate
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I haven't tore into a D44A but plenty of regular D44s. The front bearing will come out after removing the seal. The back bearing is pressed on & requires removing the ring & pinion.
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Unread 05-09-2010, 01:14 AM   #3
nitecop
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Quote:
Originally Posted by CULate View Post
I haven't tore into a D44A but plenty of regular D44s. The front bearing will come out after removing the seal. The back bearing is pressed on & requires removing the ring & pinion.
I think he is talking about the front axle (D30) not the back.

To the OP, are you sure its not a wheel bearing?? You might want to check that before the teardown.
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Unread 05-09-2010, 09:26 AM   #4
EBT531
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Quote:
Originally Posted by nitecop View Post
I think he is talking about the front axle (D30) not the back.

To the OP, are you sure its not a wheel bearing?? You might want to check that before the teardown.
Possible, would a wheel bearing only be during de-acceleration?? I just replaced the rear wheel bearings yesterday and they were shot. Right side was bad enough I had to replace the axle shaft as well (worn/pitted)
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Unread 05-09-2010, 09:30 AM   #5
nitecop
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when they are just starting to wear there won't be much noise. as they get worse of course the noise will get worse.
As far as a shop, if it is a pinion bearings most shops won't change just one. besides if you go to change 2 bearings the labor is the same if you changes carrier bearings as well.
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Unread 05-09-2010, 09:53 AM   #6
EBT531
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Originally Posted by nitecop View Post
when they are just starting to wear there won't be much noise. as they get worse of course the noise will get worse.
As far as a shop, if it is a pinion bearings most shops won't change just one. besides if you go to change 2 bearings the labor is the same if you changes carrier bearings as well.
So how many hours shop labor is average? Its been awhile but we used to pay $300 an axle to change gears (with the cost of gears) so I figure the labor is about the same right?
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Unread 05-09-2010, 10:05 AM   #7
nitecop
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If you didn't have to swap gears(and the possibility of required reshiming ) I'd just do it myself. you'll just need to toqure the bolt to the correct amount.
shop prices vary. I've seen as low as $200 and as high as $450 for a bearing change.
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Unread 05-09-2010, 10:06 AM   #8
EBT531
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Quote:
Originally Posted by nitecop View Post
If you didn't have to swap gears(and the possibility of required reshiming ) I'd just do it myself. you'll just need to toqure the bolt to the correct amount.
shop prices vary. I've seen as low as $200 and as high as $450 for a bearing change.
Thanks! I'll shop around
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