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Vibrations

912 Views 7 Replies 5 Participants Last post by  Dave600
hello i have a 1999 zl and i have huge vibrations at 70 mph and up. i heard from a lot of people that this vibration can be caused by the jack shaft being bent i brought it to a machine shop and it was off by 1 thow but my disk brake was off by 20 thow, so i changed it and i still have vibrations. all so there is a brand new drive shaft and bearings. all though i did not change the bearings in the jack shaft i am not sure if it is that.

if u have any ideas please tell me thanks
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did you by chance get it stuck sometime right before this started ? if you did i bet you have a bad spot on your belt.
did you by chance get it stuck sometime right before this started ? if you did i bet you have a bad spot on your belt.[/b]

when u say belt u are talking about my drive belt and not my track rite. if u think it is my drive belt i just changed that to.and no i have not got it stuck
Why did you replace the drive shaft? I would be looking a little closer at that especially at higher speeds it will give you a noticeable vibration if bent slightly.
any chance your clutches are out of alignment,,, if you took them apart and didnt get them back together right, that could cause your problems also,,,
ya drive belt and ok. i just start at the simplest and go from there.
Why did you replace the drive shaft? I would be looking a little closer at that especially at higher speeds it will give you a noticeable vibration if bent slightly.[/b]
Hey I am a friend of Polaris man 4, and his driveshaft snapped in half.
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