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Driver's Side Axle....

This is a discussion on Driver's Side Axle.... within the Drivetrain forums, part of the LSx Technical Help Section category; I'm on my way back home yesterday, and I start getting what sounds like a brake squeal outta the left ...

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    Member iam_dale's Avatar
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    Driver's Side Axle....

    I'm on my way back home yesterday, and I start getting what sounds like a brake squeal outta the left rear. This doesn't make any sense as there is only about 2k miles on the brakes. As I get off the highway, and start running through towns, I realize if I go through a turn and load the car one way, the squeal goes away, load it the other way, and it awful. Once I get home, I get the left rear up in the air, and the whole wheel assembly shifts back and forth about a 1/2 inch. I'm thinking the c-clip axle retainer may have let loose, but wouldn't the whole axle just fly out if that was the case? Btw, the noise was the rotor shifting all the way into caliper and rubbing.

    thanks
    dale

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    Member bberretta's Avatar
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    It's very difficult for the c-clip to come loose since there is a block bolted in the middle of the posi that keeps the axles from sliding inward and allowing the c-clip to drop out. If the c-clip had come off then the axle would pull out (the whole wheel would only be held to the car by the brake line). Pull the rear cover off and see if the axle is sliding inward and see just how it is doing it. Something must be up with that block for it to allow the axle to slide inward enough to allow it to hit like that.
    2000 Pontiac Firehawk #0041 of 742

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    Member Eganslp's Avatar
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    Hey I just had to install my 9" and I needed the e-brake mounts from my last rear and I think they bolted to the rear itself


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    Member iam_dale's Avatar
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    Quote Originally Posted by bberretta View Post
    It's very difficult for the c-clip to come loose since there is a block bolted in the middle of the posi that keeps the axles from sliding inward and allowing the c-clip to drop out. If the c-clip had come off then the axle would pull out (the whole wheel would only be held to the car by the brake line). Pull the rear cover off and see if the axle is sliding inward and see just how it is doing it. Something must be up with that block for it to allow the axle to slide inward enough to allow it to hit like that.
    I see what you're saying, and I will take a look. It looked to be only the caliper holding the wheel on. Also, the car had been in a pretty tough wreck, and the rear end took a lot of side load. I'm "thinking" that between the wreck, and the routine 130 mph runs I now make around here might be the culprit.

    thanks!
    dale

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    Senior Member Too Fast's Avatar
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    Yep take that cover off and check things.

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    The factory e-brake brackets are part of the bracket that bolts around the LCA at the rear. My MWC had the e-brake brakets welded to it.

    If it took a hard hit to the side there is no telling what it screwed up in the rear but I would hope they would have replaced the axle and internals if the rear was screwed up...

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    Member iam_dale's Avatar
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    Thanks for all the info, guys. I'm waiting on a day w/o rain so I can pull the car around back and pull both tires to compare everything. I'll let'cha know what I find...maybe it'll help someone else out in the future.

    dale

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    Member iam_dale's Avatar
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    So I finally got a day to take it apart again. I've definitely got a broken c-clip, 'cause the axle came straight out. I looked over the axle, and the outer bearings need to be replaced..the axle is pitted right there. So, new clip, new axle, new outer bearings, new outer seal, new rear end gasket, and new gear oil (75w90???). Am I missing anything else? I'll be doing this in my driveway once I get everything, so ANY advice you guys can give me would be much appreciated.

    thanks!
    dale

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    Member bberretta's Avatar
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    Don't forget the limited slip additive (friction modifier.) Just because the gear lube says it has it in it, it's always a good idea to add some to avoid chatter.

    Are you in Germany? Just noticed it said you were. If you were here I might be able to help but shipping on an axle to Germany would be more than a used axle is worth!

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    Member iam_dale's Avatar
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    Quote Originally Posted by bberretta View Post
    Don't forget the limited slip additive (friction modifier.) Just because the gear lube says it has it in it, it's always a good idea to add some to avoid chatter.

    Are you in Germany? Just noticed it said you were. If you were here I might be able to help but shipping on an axle to Germany would be more than a used axle is worth!
    I have an APO box...it's the exact same as shipping in the states. It only requires a customs form. If you've got one that is in good shape, and is for a car with Traction Control...let me know! Also...I"ve got a tube of the additive out in the garage. The movers aren't supposed to pack stuff like that..but they did...

    dale

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    Member bberretta's Avatar
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    Sending you a PM...

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    Member iam_dale's Avatar
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    Quote Originally Posted by bberretta View Post
    Sending you a PM...
    Back at'cha...and thanks!

    dale

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