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Thread: My Rear!!! My Rear!!!

  1. 03-15-2009 10:41 AM #1
    drk_syd's Avatar
    drk_syd
    drk_syd is offline Senior Member
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    My Rear!!! My Rear!!!

    I was backing out of the driveway this morning and as I turned out onto the road, the rear end made a couple of loud popping noises. It was acting like the rear was locked because the back right tire was chirping as I was turning. Once I got straightened it seemed fine so I went a little further to make another turn. Same thing happened. Made a couple of pops and the back right was locked again. Its only supposed to lock when the pass. side slips right? Anyway, I got straightened up and then it made one more loud pop and started making ticking noises as I went down the road. The faster I went, the faster the ticks got. So what did I mess up?
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  2. 03-15-2009 10:52 AM #2
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    AFSP1211
    AFSP1211 is offline Quic truck/pink engine!!!
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    Sounds like you should pull the diff cover and check your gears. Or take it to the dealer. Better yet, Have the dealer come pick it up from you. What you're describing sounds like when my spider gears decided to desintegrate.
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  3. 03-15-2009 12:27 PM #3
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    GasGuzzler
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    It should not lock up turning either direction....that's the point of a limited slip type....to lock up when one spins in a straight line but unlock in turns. If you have a G80 it's probably broken....the flywheel and ratchet thingie prolly snapped.
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  4. 03-15-2009 01:08 PM #4
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    AKlowriderZ71
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    Classic description of a broken grenade80 diff. You could get GM to warranty it, but if you're hard on your truck it will probably just break again. If you plan on putting down some power later on, now's the time to upgrade to a tru-trac or eaton posi. Stop driving the truck ASAP, hopefully your ring & pinion are still okay.
    2001 ECSB 4x4, 5.3, Radix, 3.0 pulley, VHP Trucker cam, 216/224 .551/.551 115 lsa, 1.8 Crane roller rockers, 4L65E, Yank SC3000, 3.73, Cal-Tracs, HPTuners.
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  5. 03-15-2009 01:32 PM #5
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    tick.......tick..... tick..... tick.............. BOOM...... trutrac time.
    single digit street truck


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    http://www.ls1truck.com/forums/my-ga...cs-garage.html

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  6. 03-15-2009 04:53 PM #6
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    I was planning on putting in some 4.10 gears and a tru-trac anyway just not this soon. Truck is parked for a couple of weeks i guess.
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  7. 03-15-2009 04:54 PM #7
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    LOL Crap! I was logged under my brothers name!^^^
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  8. 03-15-2009 05:01 PM #8
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    Seriously if you dont have the money for it off hand Id get it worked on under warrenty. If you still have one.

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  9. 03-15-2009 05:26 PM #9
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    Quote Originally Posted by Show&Go View Post
    Seriously if you dont have the money for it off hand Id get it worked on under warrenty. If you still have one.
    I wouldn't mind doing that since I do have the 100k powertrain waranty on it, but then I would have to have Virgil come all the way up here to take my tune off. I know it sounds soon to some of you because its an '07, but the truck is 2 yrs old with 41k on the clock.
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  10. 03-15-2009 09:15 PM #10
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    Botlfed is offline They see me rollin'
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    theres a reason why theyre are called grenade 80s chris, mine went out under stock power with 31,000 miles on it so im not suprised at all.
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