Question about 1997 Isuzu Trooper

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I was advice to change the long shaft coupling some time ago. I realised there is some vibration when doing 90km. recently I was advice to change another coupling along the long shaft, which makes it worst. I have new tires recently installed. kindly help.

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Things that go wrong on this propshaft:
Centre bearing. A bearing mounted in a rubber housing in the centre of the vehicle. Inspect the rubber for cracking and tearing. Replace if worn. The bearing itself rarely wears out before the rubber mount.
Universal joints - there are 3, one at the differential in the rear of the car, one at the center bearing and one at the transmission in the front of the car. When worn you will hear a distinct metal "clunk" when taking up drive on pull-away. Check by gripping the shaft either side of the joint and twisting eah side in opposite directions. There should be absolutely no play in the joint. Replace if worn.
Whenever a joint is replaced it is nescesary to have the shaft balanced again.

Posted on Sep 09, 2010

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