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"Klunk"

Old Jul 1, 2004 | 02:02 PM
  #1  
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chicanofire
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Smile "Klunk"

Hey Guys I had a question. I have a 2000 SD with Manual Tranny and sometimes when I upshift or give it gas and release I hear a klunking sound. It doesn't do it when I first start out (initial load) but rather when I shift up to subsequent gears or like I said give and release gas in one gear. I tried to turn the driveshaft in gear to see if it was the u-joints but it didn't move. Is this the correct way to check if it is the u-joints or is this noise normal? Thanks for any input

Jimmy
 
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Old Jul 1, 2004 | 02:10 PM
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FortyFords
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You need to grease the slip joint in the drive shaft (splines )
use teflon grease from Ford .
yes u-joints can be chk like that.
Also you could have excess backlash in the rear dif.

Rich
 
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Old Jul 1, 2004 | 02:55 PM
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chicanofire
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Sorry but what is excess backlash and what can be done?
 
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Old Jul 1, 2004 | 11:08 PM
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Backlash = the specification given for mesh of the gearrs in the rear diff .
its measured with a dial indicator in thousands of an inch.

In the rear diff you have a ring gear and a pinon gear ,they are setup from the factory to a specification on how they mesh together. I could get alot more technical ,but i think you get the picture.

Rich
 
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Old Jul 2, 2004 | 08:39 PM
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check the u joints, had that problem before, and i replaced all 3 of em, and all the bearings and havent had a problem since
 
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Old Jul 3, 2004 | 09:40 PM
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Thanks Guys
 
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