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Info Needed Part nu or Vin for late model 400 - 205 Adapter

Discussion in 'The Garage' started by doctor4x4, Jun 26, 2003.

  1. doctor4x4

    doctor4x4 1/2 ton status

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    well gmparts direct cant help me till i give em a pat nu or a vin nu for a vechicle that this set up came in stock set up
    so any help would be GREAT
    this is JUST for the adapter the 400 - 205 with a circuler bolt pattern
    Thanks
    Randy
     
  2. azblazor

    azblazor 1/2 ton status Premium Member

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    Here is the transfer case part number skinny:
    Adapter,transfer case (K/V1,2 W/M40)(85-90) - 15597795
    (NP208)
    Adapter,transfer case (K/V1,2 W/MD8) - 15597796
    (NP208,NP241)
    Adapter,transfer case (V1 W/MT1)(91) - 15654927
    (NP241)
    Adapter,transfer case (K3/V3,W/M40)(85-90) - 15597799
    (NP205)
    Adapter,transfer case (V3 W/MT1)(91) - 15629600
    (NP205)
    RPO DEFINITIONS
    MD8 - TRANSMISSION/4 SPEED AUTO (700R4)
    MT1 - TRANSMISSION/4 SPEED AUTO THM R2(4L80E)
    M20 - TRANSMISSION/4 SPEED, 117M,6.55 1ST (SM465)
    M40 - TRANSMISSION/3 SPEED AUTO (TH400)
     
  3. thatK30guy

    thatK30guy 1 ton status Premium Member

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    What Mark typed above with all the part numbers is what I show in my info, too. /forums/images/graemlins/thumb.gif /forums/images/graemlins/cool.gif
     
  4. doctor4x4

    doctor4x4 1/2 ton status

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    Thanks a million guys !!!!!!
    im so impressed i m even gonn print it out and put it in my book
    makes me glad im a member /forums/images/graemlins/thumb.gif
    Randy
     
  5. thatK30guy

    thatK30guy 1 ton status Premium Member

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    I forgot to post the part number along with what Mark had, of the '80-'84 K-series 400/205 adaptor.
    The part number is #14022218 and is still available from GM for an average price of around $200-ish.

    The '85-'90 adaptor can be had for an average around $160-ish.

    The '91 adaptor is no longer available. I've been trying to locate a source to either stock them or have some NOS leftover. No luck yet. /forums/images/graemlins/frown.gif
     
  6. azblazor

    azblazor 1/2 ton status Premium Member

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    [ QUOTE ]

    The '91 adaptor is no longer available. I've been trying to locate a source to either stock them or have some NOS leftover. No luck yet. /forums/images/graemlins/frown.gif

    [/ QUOTE ]

    "The Quest"
     
  7. thatK30guy

    thatK30guy 1 ton status Premium Member

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    [ QUOTE ]
    [ QUOTE ]

    The '91 adaptor is no longer available. I've been trying to locate a source to either stock them or have some NOS leftover. No luck yet. /forums/images/graemlins/frown.gif

    [/ QUOTE ]

    "The Quest"

    [/ QUOTE ]

    /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif /forums/images/graemlins/thumb.gif
    No kidding! So far, the only way to get one is out of a complete and running truck or assembly. /forums/images/graemlins/tongue.gif
     
  8. u2slow

    u2slow 1/2 ton status

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    [ QUOTE ]
    The '91 adaptor is no longer available. I've been trying to locate a source to either stock them or have some NOS leftover. No luck yet. /forums/images/graemlins/frown.gif

    [/ QUOTE ]

    Don't worry about it. Get the 85-90 TH400/NP205 adapter and do the 5 minutes of machine work required to make it fit the 4L80E. You just need to shave a few thou' off the lip that fits into the back of the tranny. /forums/images/graemlins/thumb.gif
     
  9. thatK30guy

    thatK30guy 1 ton status Premium Member

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    [ QUOTE ]
    [ QUOTE ]
    The '91 adaptor is no longer available. I've been trying to locate a source to either stock them or have some NOS leftover. No luck yet. /forums/images/graemlins/frown.gif

    [/ QUOTE ]

    Don't worry about it. Get the 85-90 TH400/NP205 adapter and do the 5 minutes of machine work required to make it fit the 4L80E. You just need to shave a few thou' off the lip that fits into the back of the tranny. /forums/images/graemlins/thumb.gif

    [/ QUOTE ]

    That all it takes? And exactly how much "thou" to shave off? Don't want a leaker, you know. /forums/images/graemlins/wink.gif /forums/images/graemlins/thumb.gif
     
  10. u2slow

    u2slow 1/2 ton status

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    Until it fits /forums/images/graemlins/grin.gif

    This adapter has already been done. You can barely tell, but there is a tiny "step" in the lip area as a result of the machining.
    [​IMG]

    I think the adapter is o-ringed anyway, so a "tight" fit might not be necessary /forums/images/graemlins/thinking.gif
     
  11. Leadfoot

    Leadfoot 1/2 ton status Premium Member

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    [ QUOTE ]
    Here is the transfer case part number skinny:
    Adapter,transfer case (K/V1,2 W/M40)(85-90) - 15597795
    (NP208)
    Adapter,transfer case (K/V1,2 W/MD8) - 15597796
    (NP208,NP241)
    Adapter,transfer case (V1 W/MT1)(91) - 15654927
    (NP241)
    Adapter,transfer case (K3/V3,W/M40)(85-90) - 15597799
    (NP205)
    Adapter,transfer case (V3 W/MT1)(91) - 15629600
    (NP205)
    RPO DEFINITIONS
    MD8 - TRANSMISSION/4 SPEED AUTO (700R4)
    MT1 - TRANSMISSION/4 SPEED AUTO THM R2(4L80E)
    M20 - TRANSMISSION/4 SPEED, 117M,6.55 1ST (SM465)
    M40 - TRANSMISSION/3 SPEED AUTO (TH400)


    [/ QUOTE ]


    great info /forums/images/graemlins/thumb.gif

    Does anyone have any other part number, such as ones for TH400 - NP 203, and SM465 - NP205 (both versions), TH350 - NP 203/205 etc? I figured maybe we could round them up and put them in a tech section.
     
  12. nvrenuf

    nvrenuf NONE shall pass! Premium Member

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    I just happened to have bought a set of 85-91 microfiche off of Ebay last week. I'll look for the missing short style adapters tonight. /forums/images/graemlins/thumb.gif
     

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