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Transmission/transfer case question

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by K5RON, May 10, 2001.

  1. K5RON

    K5RON 1/2 ton status

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    In a '78 3/4 ton 4wd truck, what transmission(auto) and transfer case came from the factory? Is the transfer case a slip yoke design or fixed yoke?

    Thanks in advance

    Ron
     
  2. thatK30guy

    thatK30guy 1 ton status Premium Member

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    The 3/4 tons should have the TH400 and either the NP203 or 205. I have seen some 3/4 tons with TH350's before. 78's should also be a fixed yoke on the t-cases.
     
  3. Wheels

    Wheels 1/2 ton status

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    Some had 350 and others had 400 but all had 203 t-cases. Only standards by 78 had 205's. The put 205 back in the lineup in 80 for standards and autos.
     

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