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SM465/NP205 adaptor,need pic.

Discussion in 'The Garage' started by BobK, Apr 8, 2007.

  1. BobK

    BobK 1/2 ton status

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    Does the adaptor from a SM465/NP205 combo,retain the input bearing on the NP205 or should there be a retaining collar.

    Pic's wopuld be nice.

    Thanks,Bob.
     
  2. nvrenuf

    nvrenuf NONE shall pass! Premium Member

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    What year set up?

    On the early pre-85, ten spline type the 205 input bearing is held in place by the adapter. The bearing has a snap ring on it that is pinched between the adapter and t-case to hold it.

    On the 85+ type there is an aluminum collar retaining the bearing.
     
  3. BobK

    BobK 1/2 ton status

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    Cool,Ya it a 77,10 spline.
     
  4. 454k30

    454k30 1/2 ton status GMOTM Winner

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    yep then yours is held in by the adapter. Suprised me the first time I had my case out and the bearing would almost fall out of there.
     
  5. k30bb468

    k30bb468 1/2 ton status Premium Member

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    10 spline NP205 & 32 spline NP205 up to 85 , on both the input is retained by the adapter.
    truck15aug04 005 (Small).jpg

    86-91 32 spline NP205 the input is retained by an aluminum seal housing/ bearing retainer .
    04-16-06 001 (Small).jpg

    truck15aug04 005 (Small).jpg

    04-16-06 001 (Small).jpg
     
  6. 454k30

    454k30 1/2 ton status GMOTM Winner

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    just have three of those laying around do ya? Good stuff.
     
  7. k30bb468

    k30bb468 1/2 ton status Premium Member

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    Yea, and some other junk too :D
    04-04-07 030 (Small).jpg

    10-06 006 (Small) (Small).jpg

    SM465 32spl 03(Small).jpg

    Dana 60 (Small).jpg

    Hijack over :D

    04-04-07 030 (Small).jpg

    10-06 006 (Small) (Small).jpg

    SM465 32spl 03(Small).jpg

    Dana 60 (Small).jpg
     
  8. BobK

    BobK 1/2 ton status

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    Good info..didn't know there were different sized Figure 8 adaptors either...or do they just look different in this pic.?
    [​IMG]
     
  9. dyeager535

    dyeager535 1 ton status Premium Member

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    Since it looks like you've got two apart, does the T-case side on the pre '85 cases need a stock gasket to keep the adapter from bottoming out before the bolts seat fully? (like the transmission side for the 465)

    I can't recall if that side uses a thick gasket or a paper-thin one.
     
  10. k30bb468

    k30bb468 1/2 ton status Premium Member

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    The gaskets that came in the kit I had were the same thickness for both sides of the adapter , and yes both sides require gaskets.
     
  11. k30bb468

    k30bb468 1/2 ton status Premium Member

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    The adapters are the same bolt pattern on the transfercase side , but the input bearing is a different size ,the T400 32 spline input uses a bigger bearing than the SM465 10 spline . The transmission side is totally different.
    T400 32 spline pre 86 adapter
    04-19-06 006 (Small).jpg


    SM465 10 spline adapter (not a real good pic ,but the only one I have right now)
    05-31-05 010 (Small).jpg
    Better pic of the 10 spline adapter
    77 NP205 (Small).jpg

    04-19-06 006 (Small).jpg

    05-31-05 010 (Small).jpg

    77 NP205 (Small).jpg
     
    Last edited: Apr 10, 2007
  12. tarussell

    tarussell 1/2 ton status

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    Question : I was not aware that the figure eight pattern 32 spline 205's ever came behind a 465 . To the best of my knowledge the only figure eight pattern 32 splined 205's were behind TH400 applications and then in 1985 both 465 & TH400 205's started with the universal round pattern 205's with the longer splined in-put gear . What application and year did that figure eight pattern 465/205 come from ?

    Tom
     
    Last edited: Apr 9, 2007
  13. Jimbo*

    Jimbo* 1/2 ton status

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    Tom, you are correct in your thoughts; the picture leaves an illusion. The drive sleeve is attached to the input, making it look like a long 32 spline input.
    Jimbo
     
  14. tarussell

    tarussell 1/2 ton status

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    Yah , I saw the sleeve on the 10 spline pic . I think I read his post wrong and thought he indicated that GM offered a pre 1985 465/205 32 spline case which just ain't so . My bad , I need to read more carefully.......

    Tom
     
  15. k30bb468

    k30bb468 1/2 ton status Premium Member

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    You are correct, GM never made a 32 spline NP205/SM465 until 86 & it was the round pattern transfercase. The pictures were to show the difference in the adapters.
     

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