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Vibration at 50kph

Hi All, I have a vibration when I get to 50kph once I get to 70 the vibration has gone ,it is more noticeable when going up a hill at low speed ?? was thinking drive shaft but that was fully recoed and has only done 5000ks,all mounts are new .
Any ideas would be great.
Cheers Kev
PS sorted the door out

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Kev
I had something similar on my WB, I tried the obvious - balancing the wheels and that didn't make any difference (generally if the vibration is felt in the steering wheel then worth a check along with general front end) but if the vibration comes up through your seat it's more likely driveline...I changed front and rear uni joints and that helped a bit..but it was still there...I lowered my back end - as the old bloke who had the car before me had it raised to tow a large van...after I lowered it the vibration went away...so my vibration appeared to be related to drive shaft/diff angle...but as some others have suggested it may in fact be the trailing arm bushes worn and I've sort of masked the problem...yours being a van with leaf springs may be different but it's reasonable that worn bushes could be a contributor...there is some good info online regarding driveline vibration and some methods to test and work through depending on what equipment you have so worth looking up...eg https://www.autoserv...

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Andrew

try a wheel balance i find 60k is wheel balance 80k is wheel alignment and 100k is broken steel belt..

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I would try swapping wheels front to rear or side to side. If nothing substantially changes then you can maybe can try the wheel balance.

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Check your back tyres too.
Nathan had a vibration like this in his EA Falcon.
Turned out to be a bulge in the sidewall of one of his back tyres.
David

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Old is good.

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