Vibration After Uni Joint Changed

[rokkie]

Hi all,

After peoples thoughts on the strange issue I had recently after changing the uni joint on my ba sedan. Changed the uni joint with a repco item. Once changed had a very bad vibration from 40kmph onwards. Thought maybe I had the rear section of the tail shaft 180 degrees out. swapped it 180 degrees and vibration moved to 20kmph.

Spoke to a driveline specialist and was advised to replace with a genuine joint. replaced with genuine and vibration still evident. Finally spaced the center bearing down with two m10 nuts and all good now. original weights (diff flange weights) fitted back in position they came off. Will take it in to old workplace and carry out driveline balance with IDS.

The question I have is why would the center bearing need spacing when it didn't before hand?

thanks in advance

[Mr_4.0]

Is the centre bearing a genuine one?

Aftermarket enter bearings almost always vibrate and almost always throw the shaft angle out. They are not the same as genuine.

[rokkie]

Had the non genuine on for at least a year with no spacing and no issues. Only after uni change it became an issue.

Hopefully this can help someone out in the future

[Mr_4.0]

I can't explain it. But I do know that non genuine centre bearings are sh*t house and cause dramas like these.