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Thread: GU front end clunk

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    GU front end clunk

    So my 98 GU had a bad clunking noise coming from the front end when in 4wd thought it was the CVs so though while I’m there will do a full front end rear build both sides finished all of that and still making the exact same noise sounds like it’s coming from under my feet thinking either front diff or tail shaft. The clunking starts as soon as I take off disappear for a few seconds comes back on and off please help me before it turns into fire wood 😂

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    I'm thinking it could be a seized or stiff uni joint in the prop shaft. I had a similar sensation in another vehicle and that was the culprit.
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    Check your steering damper clamp bolts. I found I had a similar noise and they were moving a little bit on initial movement.

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    Thanks for the reply’s I’ll check them out after work see how I go

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    Sounds silly, but check your handbrake is disengaging properly. Mine had the noise manifest itself in the front drivetrain for some weird reason.

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    Does it make the clunk in response to road surface. I had a terrible clunk which was only obviously on *bad* corrugations, not mild ones. Felt it through ugh the floor like you. In my case the bushes on the driver side control arm had been destroyed. Hard to see, inside the chassis, but look for the bolted end of the control arm inside the chassis, & compare it to the passenger side. If that’s it you may be lucky & just be able to tighten it up!

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    Hey it’s definitely drive line related as it in crease and decreases with speed, changes the unis no change but I tested and it only happens when the hubs are actually locked in should have done that first I know haha, they are AVM HD free wheeling my next question do they require the “egg ring” if so there is none which could be causing the issue

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    Quote Originally Posted by Peggy View Post
    Hey it’s definitely drive line related as it in crease and decreases with speed, changes the unis no change but I tested and it only happens when the hubs are actually locked in should have done that first I know haha, they are AVM HD free wheeling my next question do they require the “egg ring” if so there is none which could be causing the issue
    Try only locking one side at a time. Is it only under load or coasting etc etc? Are they genuine AVM hubs or the Chinee copies? I bought Chinee copies of the Genuine Nissan free wheeling hubs and they made terrible noises. I finally forked out the coin for the real deal ones and all noises went. And no I don't believe you require the egg ring for AVMs.

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    Another thing to check is the diff ratio's. Make sure the back is the same as the front.

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    Yeah mate it’s only under load if I let off or put the clutch in it goes away, will test the one locked in at a time cheers

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