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What is the diff?

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by RingMaster4x4, Jan 9, 2002.

  1. RingMaster4x4

    RingMaster4x4 1/2 ton status Premium Member

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    I was just wandering if you could take a NP 205 that fit a TH 400 and put the parts out of it. Then put them in to the case from a NP 205 for a TH 350? I have one with a cracked case. Thanks!

    If you build it, the mud will fly!
    72 K5 blazer with a 427 tall deck and TH350/NP205 and 9"of lift with 40"tires.
     
  2. californiak5

    californiak5 1/2 ton status

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    So you have a NP205 from a TH400 that has a cracked case. Right? And you want to use a NP205 from a TH350 for the case and make a TH400 version NP205 out of it. Am I still correct? If that is the case you should be able to do it but you will need to have the NP205 case from the TH350 bored out for the larger bearing that is on the 32 spline female input shaft. The TH350 has a smaller bearing on the 27 spline male input shaft, so that is why you need to have the case milled. Other than that I don't really think there is any difference in the case's except that you will have to make sure that the TH350 case will mount to the TH400 adapter off of the tranny, I am unsure of that. If I am wrong I am sure someone else here will let me know. Good luck with it.

    See Ya,
    Keith

    <font color=green>Born to Drive My K5</font color=green>

    <a target="_blank" href=http://coloradok5.com/gallery/californiak5>CaliforniaK5's Pictures</a>
     
  3. RingMaster4x4

    RingMaster4x4 1/2 ton status Premium Member

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    That is exacty what I wanted to know. Thanks for your time and help.

    If you build it, the mud will fly!
    72 K5 blazer with a 427 tall deck and TH350/NP205 and 9"of lift with 40"tires.
     

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