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What is involved in installing a divorced 205?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Jackedup86GMC, Sep 2, 2006.

  1. Jackedup86GMC

    Jackedup86GMC Registered Member

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    Ok, so I know I need a 2WD tranny; front, rear and middle driveshafts; a divorced 205 with cross member; but what else? What I really need to know is the little stuff, is it really this cut and dry? Any and all information is appreciated. Thanks.
     
  2. sweetk30

    sweetk30 professional hooker Premium Member

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    yep about that much. best i have seen is mount it in the middle so both main shafts are same length and 1 spare will be needed if you carry a spare.
     
  3. Col_Sanders

    Col_Sanders 3/4 ton status

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    newb question:

    What is the advantage of a divorced transfer case?
     
  4. BKinzey

    BKinzey 1/2 ton status

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    More Shifters on the floor!:D:D:D

    It separates your selection of Hi & Lo from 2wd & 4wd.
     
  5. sweetk30

    sweetk30 professional hooker Premium Member

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    i think the last 2 post have the question wrong. not a twin stick shifter setup like you replyed about. but a divorced 205 tcase. the case is held in the frame by its own crossmember and has a stubby drive shaft from any 2x4 tranny to feed it power. this will let you use any 2x4 tranny in front of it.
     
  6. Jackedup86GMC

    Jackedup86GMC Registered Member

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    The main advantage of a divorced Tcase is it helps alot with severe driveshaft angles. But in a K5 it isn't very practical. Lucky for me I'm installing mine in a LWB pickup, so it won't be a problem. Really it is only needed when you have a tall lift and the front drive shaft keeps spitting u-joints.
     
  7. BKinzey

    BKinzey 1/2 ton status

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    OOPS!:o:o:doah::ignore::ignore:
     
  8. ccj8008

    ccj8008 1/2 ton status

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    I have a crossmember that was used in an international harvester truck or travell all. These all ran divorced Np205's. The interesting thing about these crossmembers is that they go over the top of the t-case, suspending the case below and leaving nothing underneath.
     
  9. Jackedup86GMC

    Jackedup86GMC Registered Member

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    Do you have any pics of this cross member? That is the way I was thinking of going.
     
  10. sweetk30

    sweetk30 professional hooker Premium Member

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    pm divorced there is a reason thats his screen name. :haha:
     
  11. imiceman44

    imiceman44 1 ton status

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    I have one from a Dodge pickup, I thought it went under but i will take a look at it tonight and then take a pic for you.
    It's really the best option for LWB trucks and especially for a conversion from 2wd.
    They work good on Van conversions :D
     
  12. mouse

    mouse 1/2 ton status

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    And it doesn't involve a woman?:doah:
     
    Last edited: Sep 21, 2006
  13. Jackedup86GMC

    Jackedup86GMC Registered Member

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    The cross member seems to be the thing that will give me the most head ache, since it seems I will have to have one fabricated from scratch. Any pics you could post would be much appreciated. Thanks Iceman.
     
  14. divorced

    divorced 3/4 ton status

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    It shouldn't be too hard to fab a x-member. There are only four mounting bolts on the t-case, then make some brackets to attach the t-case to some box iron between the frame rails.
     
  15. divorced

    divorced 3/4 ton status

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    Nope, no woman involved... just my extreme fascination with a divorced t-case :D
     
  16. divorced

    divorced 3/4 ton status

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    Here are some pics of the Dodge crossmember...



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  17. divorced

    divorced 3/4 ton status

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    and more...



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  18. divorced

    divorced 3/4 ton status

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    These aren't my pics. I had them saved on my computer... they show a home-brew crossmember



    [​IMG]

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  19. Jackedup86GMC

    Jackedup86GMC Registered Member

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    Thank you Divorced!!!!! That is exactly the kind of stuff I was looking for!!!
     
  20. divorced

    divorced 3/4 ton status

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    No problem, sorry it took so long to get some pics up.

    If you fab a crossmember - it is important to build the crossmember to handle side-to-side forces from the torque, but also it's equally important to build it to control the t-case from a front-to-back motion as well. At first mine would "twist" forward until I built it a little stronger. If the crossmember you build needs more support, you can attach a rod from the lower bolt of the front output cover on the rear of the t-case to a point somewhere rearward on the frame to help control front-to-back forces (this is how Ford did it).
     

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