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2 wheel drive steering box

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Sparky, May 4, 2001.

  1. Sparky

    Sparky 1/2 ton status

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    Can you use a 2 wheel drive steering box on a four wheel drive. (without doing a crossover setup) I have heard that they spin the oppisite direction by some, and others have told me that the only difference is the pitman arm. Something about being able to move the pitman arm on a 2 wheel drive. It does not have to be an exact replacement for the 4x4 box because it is going on a tube frame 4x4 a friend of mine and I are makeing. We can put the box where we want it and we can weld some parts up if neccesary, but it would be nice to be able to use parts that we can replace when we break them. It just has to spin the same direction as the 4x4 box. Any info. is appreciated.

    Sparky

    When all else fails... Check the blinker fluid.
    78 K-5
     
  2. Emmettology 101

    Emmettology 101 3/4 ton status

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    If you are going through the work of fabbin up a tube frame, might as well make it better with crossover steering!

    Mike - <A target="_blank" HREF=http://emmett.coloradok5.com>http://emmett.coloradok5.com</A>[​IMG]
     
  3. dyeager535

    dyeager535 1 ton status Premium Member

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    I would suggest comparing a 4wd one to ANY 2wd GM vehicle of the 70's to mid 80's, RWD. Car, truck, probably doesn't matter, essentially the same setup, and a car box might well work in your case anyways...I'm sure the pitman arm can't spin opposite directions, since when the steering wheel turns right, the wheels have to turn right as well.

    The gear boxes are all essentially the same (size, mounting etc) between the cars and trucks, but the pitman shaft out of the box, and the arm itself, are two of the variables I believe, as well as constant, variable rate, and varying ratio boxes.

    The car steering boxes allow the pitman arm to be moved in 90 degree increments on the shaft, whereas the 4wd truck ones appear to be infinitely "moveable" because its a clamp, not splined/keyed like cars. I've never had a 4wd pitman arm off, so maybe they ARE keyed, but it doesn't make a whole lot of snese when you use a clamp.

    Dorian
    My K5 and Chev/Olds tech/links page: <A target="_blank" HREF=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</A>
     
  4. Sparky

    Sparky 1/2 ton status

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    Yeah, I agree with makeing it better with the crossover thing, but this is a low budget project. Crossover stearing would require alot of machine work. We have put this thing together with cost in minde. It has a 12 bolt rear a dana 44 front, and a free 318 and tranny that we rebuilt. All we have left is to run brake lines, throw in a tcase, and the stearing. Evrything else is done and we have less than 2000$ into a rig that will be bullet proof. Those axles wont even feel the 2000 pounds that it ways. [​IMG]

    When all else fails... Check the blinker fluid.
    78 K-5
     
  5. 4x4k20

    4x4k20 1/2 ton status

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    the 4x4 steering gear works in reverse order of a 2 wheel drive you have to get one from a 4x4 this is true

    4x4k20
     

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