new gen 4 diff, which oil? also broken out of the box ugh - Page 5
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2004-2007 Cadillac CTS-V General Discussion Discussion, new gen 4 diff, which oil? also broken out of the box ugh in Cadillac CTS-V Series Forum - 2004 - 2007; Should of just brought the car to Lindsay and have Bill do it in the first place. It would of ...
  1. #61
    Junior1's Avatar
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    Re: new gen 4 diff, which oil? also broken out of the box ugh

    Should of just brought the car to Lindsay and have Bill do it in the first place. It would of saved you alot of time and trouble...
    2005 cadillac cts-v.r #83 nasa st3 . 2011 escalade esv . 2011 sierra denali

  2. #62
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    thebigjimsho is offline Cadillac Owners 10000+ Posts
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    Re: new gen 4 diff, which oil? also broken out of the box ugh

    Quote Originally Posted by Junior1 View Post
    Should of just brought the car to Lindsay and have Bill do it in the first place. It would of saved you alot of time and trouble...
    Tru dat. Especially if it's under warranty, you get a free rental. 500 miles each way and I'd spend a couple Saturdays to get my V back and forth...

  3. #63
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    JDB
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    Re: new gen 4 diff, which oil? also broken out of the box ugh

    Ok, so I found another rear diff fluid here: http://www.southerncarparts.com/corv...nge-ex-43.html and under the TSB below. Apparently, my dealer was confused with this Dextron LS Gear Oil 75W-90, part #88862624 thinking that's what was going into my car, which already has the additive in it, but they put in the 89021677 fluid that requires the 1052358 that they didn't put in.

    So, it has an appt on 7/31 to have the newer 88862624 put in. so, hopefully the few miles that I've put on the car didn't hurt the new gen diff that was just put in there under warranty.

    ----
    Do not add any additives.

    #10-04-20-001B: Rear Axle Clunk and/or Chatter Type Noise on Turns (Drain/Refill Rear Differential Fluid) - (Apr 21, 2010)
    Subject: Rear Axle Clunk and/or Chatter Type Noise on Turns (Drain/Refill Rear Differential Fluid)

    Models: 2003-2010 Cadillac CTS, Sport Wagon (Including V-Series and Export)
    2004-2009 Cadillac SRX (Including Export)
    2005-2010 Cadillac STS (Including V-Series and Export)
    Equipped with Limited Slip Differential (RPO G80)

    Condition
    Some customers may comment on a clunk and/or chatter type noise from the rear of the vehicle while making turns.

    This condition may be worse on vehicles built prior to the 2008 model year. Carbon-faced clutch plates were introduced into production in the 2008 model year and have decreased the likelihood of the clutch plate chatter.

    Cause
    This condition may be caused by slip/stick of the posi-traction clutch plates due to insufficient limited-slip axle additive. As plates slip and stick, a jumping or jerking feel occurs accompanied by a clunk noise.

    Correction
    Important: DO NOT remove the differential cover. It is not necessary to flush the old fluid from the differential.

    Drain and refill the rear differential with fluid, GM P/N 88862624 (in Canada, 88862625). Refer to the Axle Lubricant Change procedure in SI.

    This fluid includes a friction modifier already added with a different formulation that lasts longer and does not break down over time.

    Without Differential Oil Cooler
    1.10 L
    1.16 qt

    With Differential Oil Cooler
    1.41 L
    1.50 qt

    Parts Information
    Part Number

    88862624 (US -1 qt)
    88862625 (Canada - 1 L)
    DEXRON® LS Gear Oil

  4. #64
    ewill3rd is offline Cadillac Technician
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    Re: new gen 4 diff, which oil? also broken out of the box ugh

    Ahhhh, well that would make sense.
    The LS fluid was only validated for the Y cars last time I checked.
    I guess they have added the V to the validated car list now.
    Makes sense that IF they used Dexron LS that they wouldn't have used the modifier... however the 1677 fluid is a base synthetic fluid with no modifier.
    If you can print a copy of that TSB and hand it to them they might just get you straightened out.

    I will talk to the boss and we might just stock up on the Dexron LS and start using that, it is much easier to deal with anyway.
    I am already using it for all the XLRs with the diff chatter on turns. Most of the ones around here have been done.

    I see that update is dated April so...
    I will pass that along to the other guys that I was blasting this morning.

  5. #65
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    JDB
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    Re: new gen 4 diff, which oil? also broken out of the box ugh

    Quote Originally Posted by ewill3rd View Post
    Ahhhh, well that would make sense.
    The LS fluid was only validated for the Y cars last time I checked.
    I guess they have added the V to the validated car list now.
    Makes sense that IF they used Dexron LS that they wouldn't have used the modifier... however the 1677 fluid is a base synthetic fluid with no modifier.
    If you can print a copy of that TSB and hand it to them they might just get you straightened out.

    I will talk to the boss and we might just stock up on the Dexron LS and start using that, it is much easier to deal with anyway.
    I am already using it for all the XLRs with the diff chatter on turns. Most of the ones around here have been done.

    I see that update is dated April so...
    I will pass that along to the other guys that I was blasting this morning.
    Yup, I handed it to them tonight after work. They're flushing out the old and putting in the new.

    glad I read my invoice and did some research.

  6. #66
    CancerJCC is offline Cadillac Owners Connoisseur
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    Re: new gen 4 diff, which oil? also broken out of the box ugh

    Quote Originally Posted by JNR View Post
    Thanks, I will check it out next time I'm under there.
    You will have to use a flash light and a small camera or camera phone to see it. It is tucked way up in there and took me probably 20 shots to finally be able to make out the first few numbers to see what I had.

  7. #67
    JNR
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    Re: new gen 4 diff, which oil? also broken out of the box ugh

    Good tip and will also break out my inspection mirror...It's good to know where it's tucked away, cause it's pretty tight under there, especially when you're on your back!

    I'm gonna keep my fingers crossed and hope that it will last; are the 2007 (and 06) oem versions that came with the car really an upgrade vs. the 04-05? People used to complain about the GTO rear too, but never had any real issues (owned new for >4 years), although I was basically stock and treated it sorta nice

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    ewill3rd is offline Cadillac Technician
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    Re: new gen 4 diff, which oil? also broken out of the box ugh

    You can tell if it is the latest style by looking at the front.
    The pinion housing is different.
    Post up a pic if you can't see the label and we can tell you if it is the new style.

  9. #69
    JNR
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    Re: new gen 4 diff, which oil? also broken out of the box ugh

    Good idea...will do hopefully this weekend (busy work week)...I did get a GMVIS report today and besides learning my warranty expired last week the only diff work done was:


    11/27/2006 289215 # F2023 - SEAL, PINION SHAFT OIL - REAR DIFFERENTIAL - REPLACE 3603 miles

    03/29/2007 296803 # F9706 - INSTALL REAR DIFFERENTIAL HOSE AND VENT (CADILLAC) 6013 miles

    02/15/2008 000770 # V1777 - 07204 - REPLACE REAR DIFFERENTIAL SEAL ONLY 17245 miles


    Knew the guy was full of crap and don't understand why people are the way they are sometimes; maybe passing misunderstanding off into a bs thing, don't know...I'd still like to identify the unit and will do a pic soon, I hope though. Thanks and sorry to distract the thread so much

  10. #70
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    Re: new gen 4 diff, which oil? also broken out of the box ugh

    I don't see the operation for the "carrier".
    It sounds like you'll see an old style diff with the updated pinion seal.

  11. #71
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    Re: new gen 4 diff, which oil? also broken out of the box ugh

    just installed my gen 4 diff. before i filled it i popped the drain to check.. and it had some fluid in it i assume they ship with a minimal amount. have no idead what it was. I added the 4oz redline break-in additive (includes friction modifier) and amsoil severe gear 75w-110. I will follow what darkman mentioned on page 3 for break-in for 500 miles.

    I also did notice the new diff was significantly stiffer to rotate by hand on the input shaft over my gen 1 with 34K on it... i'll chalk this up to wear of the old one and the new one is "all tight".... at least that is what I'm lying to myself. I'm biting my nails to hope i installed correctly (sure I did) and hope to hear no whine and have new confidence in car.

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