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Old 11-05-2018, 06:35 PM   #11
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Default Re: Vibration

I am assuming you are driving in 2Hi? The NCV3 4x4 system is pretty good, so even in 4hi you shouldn't have weird vibrations. There is always the possibility your Tcase is sticking in 4hi, but not likely.

I have also had new tires be out of round. Its usually pretty easy to tell, jack and wheel so it clears the ground by 2-3mm, then spin the tire slowly.
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Old 11-05-2018, 07:09 PM   #12
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Default Vibration

Yes def 2 hi. Iím confident itís not the tyres.
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Old 11-05-2018, 07:14 PM   #13
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Default Re: Vibration

How is your van loaded? Is it very light? When in decel the rear ujouint will tilt up a degree or two, so maybe you are getting out of phase a bit? In the USA, the 4x4s have some history of driveshaft vibration at 40-60mph. Usually on lightly loaded vans. The issue is sometimes resolved by switching to a different set of rear springs, which changes the ride height and U joint angle. I am not sure this matches your symptoms though. If you think this may be the case, adding 200-300kg of weight behind the rear axle might be a good test.
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Old 11-05-2018, 09:44 PM   #14
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Default Re: Vibration

Quote:
Originally Posted by Midwestdrifter View Post
How is your van loaded? Is it very light? When in decel the rear ujouint will tilt up a degree or two, so maybe you are getting out of phase a bit? In the USA, the 4x4s have some history of driveshaft vibration at 40-60mph. Usually on lightly loaded vans. The issue is sometimes resolved by switching to a different set of rear springs, which changes the ride height and U joint angle. I am not sure this matches your symptoms though. If you think this may be the case, adding 200-300kg of weight behind the rear axle might be a good test.
Yep I suspect this may be part of the issue. Van was empty. Will be loading it up this weekend so will see how that goes.
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Old 11-07-2018, 03:01 PM   #15
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Default Re: Vibration

I had a damaged tail shaft which resulted in vibration at about 60 kph in my 2012 4x4.
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Old 11-07-2018, 09:00 PM   #16
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Thanks Eric. Ill check that out.
Are the centre bearings prone to failure on them?
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Old 11-07-2018, 09:04 PM   #17
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Default Re: Vibration

Mac
A worn centre bearing will make a growling noise not a vibration. Eric.
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Old 11-07-2018, 09:35 PM   #18
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Default Re: Vibration

Quote:
Originally Posted by mcguyver View Post
Thanks Eric. Ill check that out.
Are the centre bearings prone to failure on them?
The center bearing rubber web is not grease resistant. Possibly a problem if the U-joints are retrofited with zerk nipples.
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Old 11-08-2018, 03:13 AM   #19
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Default Re: Vibration

Which side of brissy you on I am off work atm and might be a second eye for you
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Old 11-08-2018, 09:48 PM   #20
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Default Re: Vibration

Hey bugshifter. Im near Wynnum, but I would be happy to come over your way sometime.

Im taking the van up to Stanthorpe this weekend for our first real outing, but perhaps next week sometime.

That would be great
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