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Which PS Gear Box?!!

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by CDA 455, Dec 23, 2006.

  1. CDA 455

    CDA 455 3/4 ton status

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    Will a '77-'79 PS gear box work for my cross over steering set up?
    OR
    What PS gear box will I need to complete my cross over steering set up?

    For some reason I thought (and ordered/bought:mad: ) a '68-72 2WD PS gear box was suppose to be it but apparently not :( .
     
  2. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    It all depends on what style of lines your existing PS box and pump use. If you have the flare fitting lines then you need any 2WD TRUCK box from 1967-1979 or 1980 1st design. If your existing PS box and pump uses the O-ring style lines then you need a 2WD TRUCK box from a 1980 2nd design or newer up to 1987 before the body change.
     
  3. 55Willy

    55Willy 3/4 ton status

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    a 68 box will not swap (easliy) there is no cove to allows for the box to sit flat on the frame. i'm guessing a 67 on a 4wd will be the same so I'm guessing 69 and up will swap as my buddies 69 and 72 both have the right set up to allow for the box to bolt up and fit.

    Also you don't need the whole box just the shaft if your current box is working fine (leaks and slop wise)
     
  4. CDA 455

    CDA 455 3/4 ton status

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    Does the PS box on '68-'72 2WD truck/Blazer bolt on the inside of the frame, or outside, like my stock 4WD PS box? The reason why I ask is because the one I got has the tabs on the left side when properly oriented and can't bolt in because of that.
    If it bolts to the outside then LMCTruck F'ed up my order. If it bolts to the inside of the frame then I ordered the wrong PS box.
     
  5. CDA 455

    CDA 455 3/4 ton status

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    Out of curiosity, is one better than the other (Flare fittings vs. o-ring fittings)?
     
  6. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Not that i'm aware of. It's 6 of one and half a dozen of the other. You just need to make sure that the PS pump and gear box are of the same kind.
     
  7. CDA 455

    CDA 455 3/4 ton status

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    Fittings-wise, right? Regarding being the same kind.
     
  8. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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  9. CDA 455

    CDA 455 3/4 ton status

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    Cool.

    Thanks :bow: :bow: !!
     
  10. 55Willy

    55Willy 3/4 ton status

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    68's bolt on the outside of the frame even on a 2wd. sound slike you got a car box.
     
  11. CDA 455

    CDA 455 3/4 ton status

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    That's what I thought.

    Thanks!
     

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