Question about 2002 Chevrolet Silverado 2500HD

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Had transfer case rebuilt and I can't find a definite answer to what fluid it uses.

The chain got loose and rubbed a hole in it so I don't know what was in it.Some say autotrac 2. and some say ATF. It's a NP263XHD with pushbutton 4wheel drive . Allison trans 6.6 duramax. 3 buttons 4hi, 4lo, 2hi and no auto 4-wheel drive.

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  • Anonymous Jan 04, 2009

    i have 2005hd chevy 4x4 6.6 with allsion. i was driving home & the abs & brake light came on ,then went out. the next day i was driving on interstate the lights came back on . i heard a loud noise and i pull over . wrecker to chevy dealer & now bad transfer case with 64000 mile. any ideals was went wrong & why ?

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Go to DieselPlace.com and search for "pump rub". It seems there is an issue with a clip coming loose inside the Tcase and letting pieces rub a hole in the case.

Posted on Jan 18, 2009

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Www.mygmlink.com has the answer and many more items for sale like a owners manual or service manual. I am pretty sure it is ATF though. I have not had to take mine apart nor add any fluid.

Posted on Oct 16, 2008

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Where can i purchase a rebuilt transfer case for a 2007 Suzuki Grand Vitara >> Base 2.7L, RHD, V6. in Florida?


the chain is situated at the rear of the box and connects the output shaft of the gear box to the input shaft of the transfer case . it does wear and get loose and the gear teeth wear as well. all that is required is a chain and 2 gears and labour to replace
i feel that replacing the transfer case will not achieve much so i suggest that you talk with a service dealer to get a better idea of what is involved.

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Where do i find my transfer case and what fluid does it use


1. Be sure to run your car (in 4WD) for about 5-10 minutes or so to warm the oil up and be sure to park on a level ground.First we need to gather our materials. This is what I used for my oil change:Initial expenses
  • Oil Catcher - $10 at Pep Boys
  • Fluid Pump - $5 at Pep Boys
  • 24mm wrench or ratchet (assumed ownership)
  • 12mm? and 14mm? sockets to remove skidplate
Transfer Case Change Expenses
  • 3 Qt 75W90 Gear Oil - $21
  • (I used Redline from myoilshop.com)
tcase1-nggid03733-ngg0dyn-320x240x100-00f0w010c010r110f110r010t010.jpg 2. Locate the Transfer Case.
Remove the Fill Hole plug first, then place your oil catcher in position, and remove the drain hole plug.
While the oil drains, clean off the drain plug.
tcase2-nggid03734-ngg0dyn-320x240x100-00f0w010c010r110f110r010t010.jpg
3. When finished draining, replace the drain plug, and proceed to pump the fluid into the fill hole.
I filled until the fluid overran, but you can check the fluid by sticking a pinky into the hold and checking the level.
Replace the fill hole plug, and done.
tcase3-nggid03735-ngg0dyn-320x240x100-00f0w010c010r110f110r010t010.jpg

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it might be a loose chain that drag on the bottom of the case.
have a shop to do this job if you dont have enough knowledge for changing chain of transfercase.
and be sure to use the right type of fluid.

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How do I change the transfer case fluid on za ford escape


Hi there,

CAUTION

New transfer case lubricant must be installed any time the transfer case has been submerged in water. Also, transfer case failure CAN result if the correct fill procedures are not followed.

NOTE: The transfer case is lubricated for life and is not to be checked unless a leak is suspected or a repair is necessary.
  1. Remove the drain plug and drain the transfer case.
  2. Apply sealant to the drain plug threads and install the plug.
  3. The fluid level must be even with the bottom of the filler hole with the vehicle on flat, level ground.
To Fill:
  1. Remove the fill plug and fill the transfer case with SAE 75W-140 synthetic gear lubricant.
  2. Apply sealant to the fill plug and install the plug.

Cheers,


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I have a rattle coming from where the transfer case is wont engage into 4x4 the push button light just flashes


Transfer case pump can wear through case and loose it's oil. After a while, gears wear out .

Crawl under and look at the top end of transfer case, just above drive shaft....see a little hole ?


If so, you have joined the 'Pump rub club'.

Go to Google and search = 'Pump Rub'.

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I have a 2004 chevy silverado 1500 with 4x4 on the floor. its approaching 100,000 miles and i belive the transfer case is what is making noise, because i hear grinding/clunking when it shifts (when it is...


i would recommend that you check your fluid level in your transfer case. i have a 2003 chevy 1500 4wd and lost my transfer case. all of the fluid was slowly lost due to a hole punched in the case by an internal ring. this is a known problem caused by the aluminum ring creating a hole in the softer magnesium case. if you have lost your fluid it is likely that your transfer case is bad. this could be the cause of the grinding you are hearing, likely your driveshaft will be loose at the rear output shaft. you may also have problems in your speedo gauge because of the loose driveshaft. if the transfer case is bad it is likely you will need to replace it. (not cheap) there are some after market parts that can be added to the transfer case to prevent the hole from being punched if the case is not already bad. check out http://www.drivetrain.com/parts_catalog/transfer_case_replacements_and_parts/np261.html they have the after market parts and a better explanation.

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When i get to 55 mph i hear i popping in the front.Ive replaced both cv joints and a wheel bearing,but it didnt help.Iinspected the spider gears but they were fine.I disconnected the front drive shaft now...


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