CTSV drive shaft
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  • 1 Post By AAIIIC
2004-2007 Cadillac CTS-V General Discussion Discussion, CTSV drive shaft in Cadillac CTS-V Series Forum - 2004 - 2007; The round unit at the end of my drive shat makes a clicking sound when it first turn, I jacked ...
  1. #1
    camoking's Avatar
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    CTSV drive shaft

    The round unit at the end of my drive shat makes a clicking sound when it first turn, I jacked the rear up and when you turn the rear wheels you can hear the click as if the splines are a loose fit. Is this normal, if it was a u-joint I would replace it. This two peace drive shaft with this six bolt end setup is new to me.... Any words of wisdom ???

  2. #2
    darkman's Avatar
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    Re: CTSV drive shaft

    Description and Operation
    Propeller Shaft Description and Operation (CTSV)
    The propeller shaft is a tube with rubber couplings at both ends which do not require periodic maintenance, that transmit power from the transfer case or transmission output shaft to the differential.

    Propeller Shaft Description
    A center bearing assembly is used to support the propeller shaft connection point, and help isolate the vehicle from vibration.

    Propeller Shaft Phasing Description
    The propeller shaft is designed and built with the yoke lugs, ears, in line with each other. This produces the smoothest running shaft possible. A propeller shaft designed with built in yoke lugs in line is known as in-phase. An out of phase propeller shaft often causes vibration. The propeller shaft generates vibration from speeding up and slowing down each time the rubber coupling goes around. The vibration is the same as a person snapping a rope and watching the wave reaction flow to the end. An in-phase propeller shaft is similar to 2 persons snapping a rope at the same time and watching the waves meet and cancel each other out. A total cancellation of vibration produces a smooth flow of power in the drive line. All splined shaft slip yokes are keyed in order to ensure proper phasing.

    Center Bearing Description
    Center bearings support the driveline when using 2 or more propeller shafts. The center bearing is a ball bearing mounted in a rubber cushion that attaches to a frame crossmember. The manufacturer prelubricates and seals the bearing. The cushion allows vertical motion at the driveline and helps isolate the vehicle from vibration.
    From where is the sound coming?

  3. #3
    camoking's Avatar
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    The sound is in the rear end where it looks to have spline that then turn to a six bolt flange, if you rotate the wheels back each direction making the drive shaft turn each way while in neutral the the sound is as if the splines have play or a loose fit. To me this would seem to be a bad thing but this is a new type of setup for me.. Guess u could call it a yoke that then bolts to the flange for the rear end input..

  4. #4
    darkman's Avatar
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    Re: CTSV drive shaft

    Well the splines are supposed to be loose enough the slide in and out to compensate for movement in the suspension. I do not know how much noise is normal. There can be a potential and known issue with the splines on the individual half shafts that fit into the hubs - some develop rust from under lubrication when assembled and can eventually make a lot of racket.

  5. #5
    AAIIIC's Avatar
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    Re: CTSV drive shaft

    Are you sure you're hearing the driveshaft and not backlash in the rear diff? It sounds like you're describing the pinion yoke going into the rear diff, not the actual driveshaft.
    barrok69 likes this.
    '05 Stealth Grey CTS-V, 19x8.5/10" CCW T140s with Toyo Proxes T1 Sports (summer), black Team Dynamics ProRace 1.2 wheels with 275/35-18 R-compounds (track), Hyperblack Rota Torques (winter), KW Variant3s, V2 front brakes, Hotchkis rear sway bar, EPS cam, TEA-ported 243 heads, FAST92 intake w/LS2 TB, JBA Camaro/G8 1-3/4" shorty headers w/JBA cat pipes, Corsa exhaust, UUC motor and tranny mounts, UUC shifter, MAPerformance trailing arms, Specter cradle bushings, etc...

  6. #6
    camoking's Avatar
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    Quote Originally Posted by AAIIIC
    Are you sure you're hearing the driveshaft and not backlash in the rear diff? It sounds like you're describing the pinion yoke going into the rear diff, not the actual driveshaft.
    . It's a round part at the end of the drive shaft before the rear end flange the click is from inside it

  7. #7
    voodoochikin04 is offline Banned
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    Re: CTSV drive shaft

    camoking.... is this the noise youre hearing?



  8. #8
    luc082 is offline Cadillac Owners Member
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    Re: CTSV drive shaft

    Is that normal noise in that video?

  9. #9
    darkman's Avatar
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    Re: CTSV drive shaft

    Quote Originally Posted by luc082 View Post
    Is that normal noise in that video?
    Yes. Although the back lash between the ring and pinion gears is small (a few thousandths of inch) there considerable slack particular to the limited slip clutch pack.

  10. #10
    ctsv247 is offline Cadillac Owners Enthusiast
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    Re: CTSV drive shaft

    Sure its not the midshaft bearing going bad? They tend to click when they're on the way out.

    Google Voodochikin for a rebuild service. Highly recommend.

  11. #11
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    The sound is a lot like the video posted on this above. When you push the clutch in you will hear the click because you are taking the load off of it, then you hear it again when you release the clutch. An 05 came into to the a local small car lot lately so I went and test drove it. The car doesn't have any of that sound and shifts smooth even with 47 more thousand miles then mine has...

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