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Old 04-15-2007, 10:27 PM   #1
erick295
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Default Rear wheel bearing & hub removal?

I'm about to replace my rear bearings, so I searched around for some info and found this thread, but nothing else. I know the process is easy, but evidently it's a b***h to remove the original hubs

I want to make sure I get everything I need before I actually do this, because this is my only car and I do NOT want to have to put everything back together to go get something, lol. I guess I need a small sledgehammer and some PB Blaster... do I also need something like a chisel to pound with? Also, what size socket do I need for the hub assembly bolts, and will a 1/2" drive fit in there or is it too tight? Is that pretty much all I need?

One last question... where can I buy jack pads? I've looked around a bit and haven't been able to find any, except online. I'd especially like a pair I can use around the pinch weld, if I can do that. I'm getting tired of repairing my undercoating every time I jack up the back

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Old 04-16-2007, 12:31 AM   #2
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Default Re: Rear wheel bearing & hub removal?

Whenever I have ever had to remove rear hubs, I just remove the four 10mm bolts and the hub falls out into my hand. I actually have to remove the final bolt and hold onto the hub at the same time so it doesnt fall on the ground.

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Old 04-16-2007, 03:56 AM   #3
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Default Re: Rear wheel bearing & hub removal?

Actually the hardest part of this job can be getting the old hub out if it is rusted or corroded in. The PB Blaster or other good penetrant will help but I wouldn't go at it with a chisel. You definately don't need anything as robust as 1/2 in drive. 3/8 drive is more that adequate.

As for the jack pads, I don't have pads. If you are using jack stands, you can take a piece of 1x4 cut about 4 inches long and put it between the stand and the underside of the car if you are jacking it in an area that is suseptable to damage.

Here are a couple of links that show jacking locations:
http://www.saturnfans.com/photos/sho...21846/size/big

http://www.autozone.com/servlet/UiBr...3d80199897.jsp

I tried the first one but right now the Saturnfans photos are down. That one is actually a drawing from the Saturn service manuals.

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Old 04-16-2007, 08:06 AM   #4
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Default Re: Rear wheel bearing & hub removal?

jack locations = look where your spare tire is in the trunk. no dont put them there. ha ha. ok not funny but seriously, look under the carpet in the trunk. it should tell you right where to jack the car up...

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Old 04-16-2007, 09:41 AM   #5
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Default Re: Rear wheel bearing & hub removal?

Oh, are they only 10mm? I figured they'd be bigger.

I know where the jack points are, but the undercoating always gets scraped off by the jacks (not the stands). If anyone knows where to buy the pads, let me know. Otherwise, I guess I'll just keep looking around.

That should be all the info I need. Thanks guys

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Old 04-16-2007, 11:54 AM   #6
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Default Re: Rear wheel bearing & hub removal?

You are using a floor jack? I always use a piece of wood to distribute the load.

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Old 04-16-2007, 12:52 PM   #7
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Default Re: Rear wheel bearing & hub removal?

Quote:
Originally Posted by Low Saturn View Post
Whenever I have ever had to remove rear hubs, I just remove the four 10mm bolts and the hub falls out into my hand. I actually have to remove the final bolt and hold onto the hub at the same time so it doesnt fall on the ground.
i wish i had that problem. mine took 2 days soaking in pb blaster, an hour of hammering and many cuss-words...


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Old 04-16-2007, 01:05 PM   #8
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Default Re: Rear wheel bearing & hub removal?

Quote:
Originally Posted by Low Saturn View Post
Whenever I have ever had to remove rear hubs, I just remove the four 10mm bolts and the hub falls out into my hand.
....
Quote:
Location: San Jose, CA
'Nuff said.

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Old 04-16-2007, 01:52 PM   #9
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Default Re: Rear wheel bearing & hub removal?

Quote:
Originally Posted by S3aturnR View Post
i wish i had that problem. mine took 2 days soaking in pb blaster, an hour of hammering and many cuss-words...


s3aturnr
Michigan....
Well into the salt belt...
Nuff said.

Erick should be good, atlanta doesn't get much salt...

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Old 04-16-2007, 02:52 PM   #10
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Default Re: Rear wheel bearing & hub removal?

Well, I drove it for four years in Tennessee before moving here, and it got some salt there... but it spent most of its life in Florida before that, so I have high hopes. I still want to be prepared, though

I didn't think about using wood... I'll just do that if I can't find any pads. Thanks. I assume that doesn't compromise the stability at all...

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Old 04-16-2007, 04:24 PM   #11
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Default Re: Rear wheel bearing & hub removal?

Quote:
Originally Posted by alleninpa View Post
Michigan....
Well into the salt belt...
Nuff said.

Erick should be good, atlanta doesn't get much salt...
you are correct, sir. alas, if i were to unbolt the rear hub only to have it fall off in my hand, i would cry tears of joy...


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Old 04-16-2007, 05:24 PM   #12
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Default Re: Rear wheel bearing & hub removal?

Your tears of joy, being salty, would cause the hub sitting in your hand to rust...

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Old 04-16-2007, 06:02 PM   #13
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Default Re: Rear wheel bearing & hub removal?

A trick that I have used is using the bolt holes to press out the bearing. After removing the bolts that hold the bearing/hub on the knuckle, I then insert some longer bolts, two opposite each other will do. The studs that hold the upper motor mount or about the same length work real good. Then rotate the hub so the bolt heads press up against the hub. Start turning the bolts out a few turns at a time and the bearing/hub will come right off.

Of course a couple days soak with PB Blaster is always good.

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Old 04-17-2007, 02:54 PM   #14
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Default Re: Rear wheel bearing & hub removal?

That sounds interesting, but I'm a little lost because I don't know what this thing looks like. Are you rotating the hub so that its bolt holes no longer line up with the knuckle's holes, and then tightening bolts into them from the front, so they press against the knuckle and pull the hub out?

Do you know the thread dimensions of the bolts so I could get a couple? I don't have any extras.

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Old 04-17-2007, 03:04 PM   #15
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Default Re: Rear wheel bearing & hub removal?

Quote:
Originally Posted by erick295 View Post
That sounds interesting, but I'm a little lost because I don't know what this thing looks like. Are you rotating the hub so that its bolt holes no longer line up with the knuckle's holes, and then tightening bolts into them from the front, so they press against the knuckle and pull the hub out?

Do you know the thread dimensions of the bolts so I could get a couple? I don't have any extras.
There are holes in the hub, for no apparent reason.
Use a long bolt and thread it into where you took the short on out from, going thru the hub mystery hole by the wheel studs.
After you screw in far enough you can rotate the hub, rotate the hub some so the mystery hole doesnt line up. Then back out the bolt, and it will jack against the hub, and maybe push the whole bearing assembly out.
On my montana, I did similar on the front, and the bearing came apart, leaving part of it stuck inside. Fortunately it was the front and I used the CV as a jack with the big cv nut.

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Old 04-17-2007, 03:47 PM   #16
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Default Re: Rear wheel bearing & hub removal?

P'raps this is just what these holes are for, to create an ad hoc puller.

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Old 04-17-2007, 04:19 PM   #17
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Default Re: Rear wheel bearing & hub removal?

Quote:
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P'raps this is just what these holes are for, to create an ad hoc puller.
Well the holes are there for access to remove the bolts. Guess you could say if you can't pull it then push it.

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Old 04-30-2007, 04:36 PM   #18
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Default Re: Rear wheel bearing & hub removal?

I went ahead and replaced the bearings (they came off pretty easily with a hammer and some PB), and now my rear brakes are groaning when I release the pedal. They seemed to be adjusted properly, dragging just enough, but maybe not. Do I need to just wait a few days to see if they self-adjust, or is there something I should do to help the process along? Could it be something else? They seem to work fine... I can stop the car with just the handbrake.

In any case, the clacking noise went away, and the car coasts better now (which may or may not be because the brakes aren't properly adjusted)

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Old 04-30-2007, 08:08 PM   #19
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Default Re: Rear wheel bearing & hub removal?

Probably where the drum sits in proportion to the shoes has shifted slightly with the tighter bearings.

Maybe try pulling the drums and sandpapering the rust ridges away. Hate to have that noise mask a bearing problem.

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Old 05-01-2007, 08:00 AM   #20
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Default Re: Rear wheel bearing & hub removal?

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Maybe try pulling the drums and sandpapering the rust ridges away. Hate to have that noise mask a bearing problem.
If you're talking about the surfaces the shoes drag on, there's no rust on them. Also, this only happens when I release the pedal, not while stopping. It's just like the usual sound that happens if you release the pedal enough that the car starts rolling but the brakes are still tightly engaged, except louder... it almost sounds like they're wet or something.

EDIT: BTW, the car isn't rolling here... it happens even when I'm sitting still on flat ground and out of gear.

Last edited by erick295; 05-01-2007 at 08:07 AM..

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