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10 and 32 spline 205- do they both use same adaptor for sm465?

Discussion in 'The Garage' started by COCHEV, Sep 21, 2003.

  1. COCHEV

    COCHEV 1/2 ton status

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    i have the 32 spline version 465 with a 208 and am looking at going to a 205. i have a line on a 10 spline case and adaptor. could i convert the 205 to 32 spline and bolt it all up or are the output shafts on the 465 different lengths between the 2 spline counts? thanks,

    jason
     
  2. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Re: 19 and 32 spline 205- do they both use same adaptor for sm465?

    GM never used a 19 spline t-case of any sort. You must be looking at a Dodge case. GM only had 10, 27 and 32 spline cases. /forums/images/graemlins/thinking.gif
     
  3. COCHEV

    COCHEV 1/2 ton status

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    Re: 19 and 32 spline 205- do they both use same adaptor for sm465?

    oops, my bad. /forums/images/graemlins/tongue.gif i'll change the title. i ment 10 spline. /forums/images/graemlins/ignore.gif

    thanks wes
     
  4. kennyw

    kennyw N9PHW Premium Member

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    The 10 spline NP205 uses a smaller bearing and different adapter than the 32 spline version.

    The adapter for the long 32 spline input for a sm465 has a round bolt pattern compared to the figure 8 bolt pattern of the 10 spline version.

    Not a direct or easy swap...

    But, I had done some looking and if you get the 10 spline version and the figure 8 adapter, then buy the short 32 spline bearing and input from ORD (TH400 parts) and machine the NP205 for the big bearing. You could then bolt up the figure 8 adapter between the SM465 and NP205 and the output shaft may need to be trimmed by 1/2-1".

    I have not done that yet but was looking at it very closely. Just didnt have the funds to test it out yet.
     
  5. 84_Chevy_K10

    84_Chevy_K10 Banned

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    The GM long 32 spline adapter is what was used on my '86 K30's TH 400, correct? That means I can bolt that transfer case, with adapater to an '82 model year SM 465 and have a 32 spline setup for my truck?
     
  6. kennyw

    kennyw N9PHW Premium Member

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    No, SM465 and TH400 use different adapters. The long/short 32 spline inputs refers to the input shaft itself. TH400 use a short 32 spline input shaft and the '85 and up SM465 uses the long 32 spline input shaft. You might want to take a look at the ORD website if you want to see a side by side comparison.
     
  7. thatK30guy

    thatK30guy 1 ton status Premium Member

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    [ QUOTE ]
    The GM long 32 spline adapter is what was used on my '86 K30's TH 400, correct? That means I can bolt that transfer case, with adapater to an '82 model year SM 465 and have a 32 spline setup for my truck?

    [/ QUOTE ]

    You can use your '86 case and bolt it to an '82, or even '81, BUT you will need to use the '85-'91 adaptor meant for the 465/205. Your 400/205 adaptor won't work.
     
  8. 84_Chevy_K10

    84_Chevy_K10 Banned

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    I take it those adapters are hard to come by?
     
  9. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Eehhhhhhhhh....well.....not really. You just gotta know where and who to get ahold of.

    Put it this way: '85-'91 one ton 4x4's with the 465/205's were a lot more available in the parts category compared to the 465/203 combo which was produced for only one year. /forums/images/graemlins/thinking.gif

    About the only place you are gonna have the best luck is at the salvage yards, even if they are asking $200, give or take, you better snatch it because they are no longer made from GM new anymore.

    As luck would have it, I've got this adaptor, but unfortunately, I dropped it and broke the 465 side of it near the bottom. /forums/images/graemlins/tongue.gif /forums/images/graemlins/angryfire.gif
     
  10. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Nevermind then screw that. I'll keep a 10 spline box before I'll put a 208 back in my truck simply because the adapter is unavailable.
     

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