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    NP203 Conversion Kit question

    Spacer on the left is from a 75' or newer np203 which I was given two, the right one is my original. The 2nd/3rd pics is of newer single spacer installed with the washers/bearing. The fourth is of both spacers I was given by the shop. The last one is of the original spacer with the shoulder and...
  2. T

    NP203 Conversion Kit question

    I have a 74' K-10 and I'm installing the mile marker part time kit (501) with the 4 tabs you install into the differential housing in my 74' NP203. The direcions from mile marker are very vague but says a spacer in a 73-74 truck needs to be replaced with the spacer from a 75'+ unit. I believe I...

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