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K5 driveshaft question

Discussion in 'The Garage' started by KevinsK5, Oct 12, 2005.

  1. KevinsK5

    KevinsK5 1/2 ton status Premium Member

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    Hi I'm trying to buy two Blazers (one a 73 the other a 78) and I have a question regarding driveshafts. Both driveshafts are gone out of the 73, but the 78 has both. The 73 has a dana 44 front, and the 78 has a 10-bolt. Will the front shaft from the 78 swap right into the 73 without changing U-joints? How about the rear? Both are autos with 203 T-cases, and neither of them are lifted. Thanks, Kevin
     
  2. unclematty

    unclematty 1/2 ton status

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    Not sure on that one, probably not. wait till some of the real experienced guys chime in.
     
  3. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

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    Yep should bolt right in!
     
  4. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    May not fit , depends on whether both cases have the same output . In the late 70's GM went from a spicer style shaft with a strap on the u-joints up front , to the square flange with the 4 bolts . I have on of each 203 here , and I am talking about the front output shaft .

    Just checked my LMC catalogue , and both are listed for the cutoff year of 1977 , so you need to look .
     
    Last edited: Oct 13, 2005
  5. trailblazr81

    trailblazr81 1/2 ton status

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    Crawl underneath and if both look like they will fit then they will. If you see omething obviously different then they wont. Im betting they will tho.
     

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