Pontiac Grand Prix:

Universal joint and drive shaft alignment

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# 1  11/4/2010 11:53 PM

Bunky
New member
Registered: 11/4/2010
Posts: 2

Universal joint and drive shaft alignment

Hi,
     I bought a 1986 Grand Prix to rebuild. It's in pretty good shape but the drive shaft was out of it and the U joints removed. The shaft and yoke weren't marked for alignment when replacing. Is there a way to figure out how it all goes back together so the balance and alignment are correct. Thanks in advance for any help or advice that you can offer.
Bunky

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# 2  11/5/2010 9:41 PM

TechHelp2
Administrator
Registered: 11/24/2009
Posts: 1299

Re: Universal joint and drive shaft alignment

Unfortunately you can't tell at this point without any markings.

Just install the Universal Joints and the Yoke and see if you have a vibration when it is ready to drive. In most cases you won't have any problems. If you do, then block the tires and apply the emergence brake for safety, put the car in neutral and remove the drive shaft from the rear differential, turn the shaft 180 degrees and install. 

Test drive the car and the vibration should change for the better, as long as the shaft or yoke are not bent.

If you need anymore information just let us know, we will be glad to help.


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# 3  11/5/2010 10:04 PM

Bunky
New member
Registered: 11/4/2010
Posts: 2

Re: Universal joint and drive shaft alignment

I appreciate the info. Does it matter what position the front yoke is attached to the drive shaft? Thanks again. Great site !!

Bunky

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# 4  11/5/2010 11:32 PM

TechHelp2
Administrator
Registered: 11/24/2009
Posts: 1299

Re: Universal joint and drive shaft alignment

No just put it together and test drive the car in most cases it should be fine.


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