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  1. #1

    Default '99 Suburban push-button 4WD transfer case cross reference Q


    I've got a '99 GMC Suburban. 350, auto, 4wd, 3.73 limited-slip rear, and push-button 4wd. The transfer case on the truck is cracked significantly, and it won't hold oil. As such, I'm looking for a replacement transfer case.

    My question is, which transfer cases will work?

    Based on the numbers, I'm coming up with a NP 246 model. The build codes in the glove box show NP8. The information on the transfer case reads:

    246 GM
    1501 7912 NP8

    Serial # 219983


    Does the push-button 4wd matter at all? Can I just find any NP246 out of a GM truck, and bolt that puppy in? Any assistance would be most appreciated.

  2. #2


    22 views. Can anyone offer any input? Even a pointer in the right direction would be appreciated!

  3. #3


    since the master tec guys have said nothing...
    id try asking that question to the dealer or possibly going to a junkyard and finding the same # that is on the t case
    not alot of help but hope its a start

    2002 Jeep Wrangler Sport 4x4 (the Yellow Jacket)
    4inch suspension 3inch body
    Straight 6 (383 Stroker within a year)
    36inch SuperSwamper TSL.
    Detroit Loccers
    Daily Driver Weekend Wheeler
    much more...

    2004 Sierra crew cab, 2wd, 5.3 V8
    2inch Daystar Leveling kit
    single dumped Flowmaster 40 sieries exaust(removed)
    Mb Blitz Chrome wheels
    Leer Bed Cover(for sale)
    50k miles

  4. #4


    I'm having the same problem. You can get a replacement housing and all internal parts. but as far as a replacement transfer case, if you want to stay with the auto transfer case, you have to be in a 1999 or later full size 4x4 with the auto 4x4 push-button selector. A great place to look is . The only problem is that they list vehicles they have, not parts available. Another great site is , which is the national used parts system that junk yards used. It will give you list of parts available by distance from a zip code, price, parts grade, etc. If you find out if the transfer case can be changed out with a np261 (push button but no auto 4x4 function), please let me know.

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