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78 3/4 truck d-train

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by jayweb, Oct 29, 2003.

  1. jayweb

    jayweb 1/2 ton status

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    what front axle / tcase would it have? we may be trading for one here at the dealership -- I know it has the 14ff, and it looks like a 205, but was just curious. thanks
     
  2. Muddytazz

    Muddytazz 1 ton status

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    The front axle could either be a 10bolt or a D44, GM used both from like 77 - 80 i believe, you can look here to get a better idea. As far as the t-case, the 205 came stock with the 465 and the 203 came stock with the auto-tranny, but all this is null and void if its been swapped. Hope this helps.
     
  3. R72K5

    R72K5 Banned

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    if its auto trans then its 203 from 74-79 years

    if its K30 then its most likely 205 then, otherwise 203 90% of the time
     

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