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I have a 1995 GMC Sierra extended cab 2 Wheel Dr. 5.0 have vibration replaced everything in the front and tires trued wheels check for being bent nothing everything is okay but found out if you get a load in the bed vibration decreases without any weight vibration increases what can cause this

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  • Cars & Trucks Master
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The drive line angles are at fault and they come less of a problem when the diff angle is changed from the load. If you have a centre bearing in the drive shaft then the height at which it holds the bearing will have something to do with your problem. basically the angle that the gear box flange sits (say 2 degrees from vertical) has to be the same as the flange at the centre bearing flange as the same as the diff pinion flange . If the centre bearing is too high then the angle at that flange will be less than the 2 degrees and a harmonic vibration begins . Have an engineering shop that specialises in tail shaft manufacture (Hardy Spicer) check it out for you and they will explain what I mean. There are web pages that have detailed diagrams to help. Just go google and type in tail shaft vibrations and faults.

Posted on Oct 12, 2013

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Posted on Jan 02, 2017

angelo63
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SOURCE: 95 ford explorer, grinding noise/vibration at slow speeds.

CHECK YOUR UNIVERSAILS COULD BE WORN OR DRY U NEED TO PULL OUT THE SHAFT TO CHECK PROPLEY CHECK FOR STIFFNESS AND NOTCHEY MOVEMENT

Posted on Dec 16, 2008

  • 13 Answers

SOURCE: front end vibration

your alignment could be off

Posted on Mar 30, 2009

  • 129 Answers

SOURCE: 2004 Ford F-150 extended cab FX4. 4WD problem

The malfunctioning part in my case is what ford calls the "integrated wheel end" which locs the weel hub on the four wheel drive in or out as need. Part is available from Ford and cost about $110.00. I will do this repair myself.

Posted on Apr 10, 2009

mecanica03
  • 881 Answers

SOURCE: Vibration on acceleration

when some vheel missing weight , the vibration begins at 40-45 mph, now if begins at any moment of acceleration ,check inner drive shafts , no outer joints

Posted on Apr 20, 2009

  • 1 Answer

SOURCE: GMC Sierra 4 wheel drive won't disengage

i had the same issue change push button cluster

Posted on Dec 27, 2010

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