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Fg Axle Tramp .. Or Diff Bush?


God666

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  • Complete Bastard
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  • Member For: 21y 3m 6d
  • Gender: Male
  • Location: Sydney

Guys,

I am getting what I thought was axle tramp however, taking vids, I couldn't spot any wheel bounce at all so I stuck the camera near the cradle. Apart from being surprised at how much the diff moves, is this showing that the rear bush is cactus? It was replaced with a Superpro by Pat's team at Wholesale suspension some time ago along with the rest of the rear suspension bushes, Koni adjustables and HD springs. All of this was to control what was bad axle tramp in the wet or dry.

Thoughts?

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  • Complete Bastard
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  • Member For: 21y 3m 6d
  • Gender: Male
  • Location: Sydney

Vid from the same piece of road (different occasion). You can hear the point at which it bangs but can't see any discernible movement of the wheel.

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  • Member For: 14y 2m 27d
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  • Location: Melbourne

It can happen in both utes and Sedans.

Have you replaced or uprated your struts? If they are the original they could be past their life and not keeping control therefor contributing to axel tramp.

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  • Member For: 12y 6m 11d
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Says in the first post, he had Koni,

But, I have Koni and still get tramp too.

Did the car only just start doing this lately? If so, I'd say something is shot, could always try winding the rear shocks up harder. I was going to do that in mine. Never got around to it. But after just watching your 2nd vid, those rear arms don't seem to be doing what the diff bush is anyway. Have you checked the bush?

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  • Complete Bastard
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  • Member For: 21y 3m 6d
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It seems slightly worse now than when I first had the work done. Having said that though, I went back twice to get the shocks cranked firmer as it was still tramping. I have never managed to get rid of it completely. In the wet, I just accept that I have to drive like grandma as it tramps badly. If the car starts to spin and I crank it so that the back slews slightly then it won't tramp. I might take the shocks off and give them another turn.

If I look closely at the rear bush, Should I be able to see a slight gap (about 3 or 4mm I suggest) at the top as it goes under load? How do I check the bush?

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