Question about 2007 GMC Sierra Classic

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Two piece drive shaft vibrating

Where the drive shafts join in the center the "rubber boot" seems to be bad. Both shafts have alot of movement when I push/pull on the shafts. The vehicle vibrates at different speeds and at different times. Wheels and tires have been force balanced at the dealership and the tires are new.

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Just take the drive shaft out and replace all u-joints (3) and ur center support bearing (1) in all on my 2002 gmc sierra 2wd it was 50 dollars

Posted on Dec 28, 2012

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Posted on Jan 02, 2017

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SOURCE: I have a 2008, 2500 duramax. Vibration at very

Check & make sure (with engine off) that the fan blades are not loose & that the fan clutch spins freely.Remove engine belts & run the engine for a short period in search of a vibration.This will eliminate any belt driven accessory.-

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There is always the possibility of a balancer(on the crankshaft) shifting & causing an imbalance.To eliminate this the balancer can be inspected & removed if necessary.

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There is also the possibility of a transmission torque converter coming apart or slung off a balance weight.To eliminate this, the converter must be unbolted from the engine flywheel & the engine run to check the difference.

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Also check, Suspension Vibration or Frame Beaming.

This is accomplished by tying the rear axle to the frame via an articulating sway bar and endlinks that supports and stabilizes the housing unit by means other than spring tension (via rear leaf springs).Also check to see if the load is making the exhaust ground out against the frame.---------

Also check the u-joints.--------

This should help.Thanks.Helpmech.

Posted on Aug 09, 2011

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1 Answer

Farmtrac555


The boot is not for the brakes. It is to keep the grease from getting dirty on your drive shaft from motor to tires. The rubber boot covers a rotating ball bearing union device call a CV joint (Constant Velocity) joint. It the boot is torn, you can buy two piece boots that allow you to replace the boot without pulling the CV drive shaft from the car.

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Here is the part that I asked about,now my question is can I buy the rubber n clamp separate?


if your referring to the rubber boot on the shaft---yes you can
you can get genuine that will require you to remove the shaft from the vehicle so that the new boot can be installed
or
you can buy after market boot that allows you to place the boot around the joint and clip it together
It is a cheaper fix but will require careful fitting to get it to seal at the joined edges properly
Bands are supplied with either part
An accredited specialist drive shaft will have either boot kit and will be able to do wither job peoperly

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Did you try to get some assistance form the dealer? Try to google for the info?

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Haven't seen that happen for a while.
The harmonic balancer on your car has two pieces joined together by bonded rubber to reduce vibration. The rubber has let go and is spinning on itself.
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If I remember correctly, does your drive shaft have a locking coller
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