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NP 203 with hubs

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by blazinzuk, Apr 15, 2003.

  1. blazinzuk

    blazinzuk Buzzbox voodoo Premium Member GMOTM Winner

    Dec 20, 2002
    Likes Received:
    Afton / Star Valley Wyoming
    I have a Dana 44 with hubs under my blazer now I am trying to leave for a trip very soon. So my ?s are as follows Can I just leave the hubs locked and drive like that? Also can I put the t-case in Hi Lock and go with no front driveshaft.(I am going about 500 miles one way ) I have a part time conversion kit from superwinch but it says I need a new thrust washer and all my local shops can say is "Well bring it down here and we can look at it" The GM part number that comes with the instructions is no longer available I am leaving on Wed so any and all help
    /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif
  2. pismorat

    pismorat 1/2 ton status

    Oct 29, 2002
    Likes Received:
    So if you put it in 2hi, the front shaft still spins? Why dont you put it in 2hi and take the shaft off and leave the hubs unlocked? It is best to have the hubs unlocked, cause you'll just be spinning a lot of parts up front that don't need to be run. Mile-marker makes the best kit for 203's now, they're bulletproof. I love mine. /forums/images/graemlins/truck.gif
  3. mofugly13

    mofugly13 1 ton bucket of rust

    Oct 6, 2002
    Likes Received:
    San Francisco
    Check this out.
  4. Executioner

    Executioner 1/2 ton status

    Feb 22, 2000
    Likes Received:
    Temp. Ft. Walton Beach Fl. home=Tucson, Az.
    And you wounder why the NP203 get such a bad rap!
    Dude the Thrust Washer fron your 73 is 0.050 inches
    to thick plain and simple do not use it as is.

    If you can not get the right TW, you might try to
    take 0.050 inches off your 73 TW, not for the novice
    not reccomended.

    If you need to drive for 500 miles, just put the NP203
    back to full time, and remove the front shart, and drive
    in 4HLock.

    FYI the NP203 does not use Gear oil/SAE 90 W

    good luck

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