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  1. SilverSport

    That makes little sense

    I’ll bet it was to cover ALL the optional tire and wheel packages offered with one spare tire size…here is my sticker from my 2005 Yukon Denali...
  2. SilverSport

    Transfer Case Fluid 2005 Yukon Denali...

    transmission and transfer case fluids replaced with Valvoline MaxLife Multi-Vehicle transmission Fluid…meets and exceeds the OEM recommended fluids for my 2005 GMC Yukon Denali…Dexron lll H-Specification... Thanks again for all the help, Bill
  3. SilverSport

    Transfer Case Fluid 2005 Yukon Denali...

    well here is something interesting…the fluid mentioned above in the bulletin, 88861800 is no longer made and was GM’s new name for the discontinued Dexron lll as GM no longer offers a license for Dexron lll... I think I will/should be okay using Valvoline MaxLife as it shows it is safe for Dex...
  4. SilverSport

    Transfer Case Fluid 2005 Yukon Denali...

    every time I see that recommendation it shows for 2007 and newer transfer cases while mine is a 2005…why is this so confusing?... I look online at replacement transfer cases and the recommendation is Dexron Vl while some others even show 5W-30 full synthetic motor oil... Bill
  5. SilverSport

    Transfer Case Fluid 2005 Yukon Denali...

    what does your owners manual call for???…mine says Dexron lll with the H designation Automatic Transmission Fluid for the transfer case… remember I have a Yukon Denali with AWD and no low gear just AWD all the time…Borg-Warner 4481/NR3 transfer case Bill
  6. SilverSport

    Transfer Case Fluid 2005 Yukon Denali...

    because Dexron lll H is no longer certified by GM…I did find that Valvoline MaxLife Multi-Vehicle fluid is Dexron lll H listed as well as Dexron Vl... I keep being told this but have yet to find the actual source/TSB for it…the above mentioned Valvoilne MaxLife Multi-Vehicle transmission fluid...
  7. SilverSport

    Transfer Case Fluid 2005 Yukon Denali...

    no worries…I do know the Auto-Trak ll stuff is for later trucks and not mine... my transfer case has a 4481 sticker on it…I see NP5 on the RPO sticker... Bill
  8. SilverSport

    Transfer Case Fluid 2005 Yukon Denali...

    which one to buy???…I have seen so much conflicting information for the fluid to use in my 2005 Yukon Denali AWD transfer case. Owners manual lists Dexron lll H Valvoline lists blue bottle Dex/Merc covers Dexron lll (but doesn’t list the latest H version) Valvoline lists red bottle Maxlife...
  9. SilverSport

    What did you do to your NBS GMT800 Tahoe/Yukon Today?

    first by hand wash of the Denali from me this Spring…I’m getting too old for this ;) …nice to get some of the Winters leftovers off though... Bill
  10. SilverSport

    What did you do to your NBS GMT800 Tahoe/Yukon Today?

    just filled the tank with Costco Top Tier regular unleaded (87 octane)…$4.05 a gallon in ChicagoLand just before prices jumped up another .10 cents per... Bill
  11. SilverSport

    2005 Yukon

    I believe the A/C Delco 41-962 is a Double Platinum plug, not an Iridium (if I am reading your post correctly eagle)…that is also the plug now spec’d for my 2005 GMC Yukon Denali over the original 41-985 Iridium plug…(going from iridium to double Platinum) Bill
  12. SilverSport

    Trouble removing your heater core T fittings with rear heat?? I have a suggestion

    excellent thread…thanks for this information Bill
  13. SilverSport

    [SOLVED] 2003 Tahoe - Slow or no crank, no start (already tried a lot of the easy stuff)

    many times a battery might test good but when a load is introduced it fails…good luck with yours Bill
  14. SilverSport

    Preventative Maintenance Plan Guidance (WWYD?)

    ...I meant perhaps they discontinued the LSD for the AWD GMC Yukon Denali by 2005 since OP’ers 2003 has one and my 2005 does not (and I don’t show it was optional for 2005)... Bill
  15. SilverSport

    Preventative Maintenance Plan Guidance (WWYD?)

    GT4 is the RPO for a 3.73 gear ratio...I have it as well...I thought the LSD was G80...my Yukon Denali does not have that...perhaps they discontinued the LSD by 2005... thanks, Bill
  16. SilverSport

    Preventative Maintenance Plan Guidance (WWYD?)

    does your Yukon Denali have an LSD or did you use LSD in your rear differential for another reason?... am I reading correctly that your rear shocks were replaced with Bilstein shocks???...if so, what is your rear compressor able to do since you no longer have the Z55 Autoride unless Bilstein...
  17. SilverSport

    Heating

    good point and should be easy enough to check...:cheers:
  18. SilverSport

    Heating

    my 2005 GMC Yukon Denali does not have a cabin air filter despite RockAuto stating there is a replacement filter for one...there is no Cabin Air Filter listed in the owners manual either... Bill
  19. SilverSport

    Fuel Injector cleaning?

    Chevron Techron Complete Fuel System Cleaner...do you have a Napa store near you???...they often run a sale on their "Complete..." ...when I've had any issue I "double dose" for one time (1 oz per gallon doubled to about 2oz per gallon)...then I use it about once a year in my gas tank and I use...
  20. SilverSport

    2004 Tahoe

    welcome to the Forum for the GMT800 series of vehicles... Bill
  21. SilverSport

    2000 Denali heat

    does it look like the pic of the one I attached above???...then it is a GMT400 (I believe)...Do you have a Vortec 350 or a 5.3/6.0 engine???...if it is the 350 it should be a GMT400...1999 and 2000 in the Escalade were GMT400s... ...Bill
  22. SilverSport

    2000 Denali heat

    Isn't the 2000 Denali a GMT400???...or did they switch to the GMT800 version during the 2000 model year...? https://hips.hearstapps.com/hmg-prod/images/1998-gmc-yukon-denali-101-65a80c3b0ebff.jpg Bill
  23. SilverSport

    What did you do to your NBS GMT800 Tahoe/Yukon Today?

    after a trip to Menards I had my glass hatch decide to close on my head after giving me no heads up ;) the struts were failing prior to the head bang... a quick visit to RockAuto.com and I bought new STRONGARM struts for the glass hatch as well as the hatch door itself... about $50 lighter in...
  24. SilverSport

    DIY headlamp restoration

    if having the lights ON all the time was the issue wouldn't they be damaged from the inside out???... I think most of the damage on the outside is environmental as well as age, cleaning and abrasion
  25. SilverSport

    What did you do to your NBS GMT800 Tahoe/Yukon Today?

    put mine on a Deltran Battery Tender to bring the battery up to full capacity as it has been sitting in the garage while I flirted with work on a 2012 Chevy Traverse for the last month... ...the Traverse went to Carmax yesterday so my Denali will be hitting the road for errands today...:cool: Bill

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