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Re: Guibo/Driveshaft noise troubleshooting (archive)

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Posted by Dwight H. on June 25, 2001 at 23:26:26:

In Reply to: Guibo/Driveshaft noise troubleshooting posted by Balto Tim on June 25, 2001 at 13:39:00:

I'm getting a horrible racheting-like noise beneath my shifter -- high frequency, sounds external -- as I disengage my clutch or exceed 30-35 mph. As I hit 50-60, it gets defeaning. I just put in a transmission of unknown condition, so it's going to be a puzzle!

Looking through the archives, I think I need to 1) replace my guibo, 2) make sure the tranny is tight to the block and dustcover properly attached , 3) check allen bolts that hold shifter assembly to tranny...

Any other ideas? Does this noise sound familiar to anyone? Could it be worse? Trans bearing? pressure plate? Time is of the essence! Gotta get this beast running right by Friday night!

All good suggestions. Try rear of car up and secure with jackstands and block front wheels. Start car and engage in gear, start with 1st. Have an assistant do this while you crawl underneath to see what is happening. Be very careful not to touch any moving parts.
If guibo is bad, there is a possibility that your driveshaft u joints are binding up. This will also take out the center support bearing. Pull driveshaft and rotate the joints, if you feel any binding, they need to be replaced. Unfortunately, the entire driveshaft will need to be rebuilt or you might find a good used one from someone on the board.

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