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Need Help with Axle Shaft Identification (Pics)

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by BlazerGuy, Dec 31, 2000.

  1. BlazerGuy

    BlazerGuy 3/4 ton status

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    I got this axle for free[​IMG] My friend said that its for a 1/2 ton Chevy but it only has 27 splines, I thought a 10 bolt had 28[​IMG]but it also looks like a C-clip design. I've never replaced one of these so I dont know what it supposed to look like, so I took some pics for yall to tell me if I got a free axle or free boat anchor[​IMG]

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  2. BlazerGuy

    BlazerGuy 3/4 ton status

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    back to top......not urgent, but I'd like to know [​IMG]
     
  3. Casey 86K5

    Casey 86K5 1/2 ton status

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    I think you got a free boat anchor. It looks like a late model Mopar 8 1/4" axle out of a dakota with the smaller 6 lug pattern. The flange is a smaller diameter than that of the 6-lug flange on a 1/2 ton 10-bolt.

    Casey 86K5

    <A target="_blank" HREF=http://86blazer.coloradok5.com>http://86blazer.coloradok5.com</A>
     
  4. Confederate9

    Confederate9 1/2 ton status

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    look at the axle identification chart under the "tech" section
    if that helps

    Confederate's w/ K5's!
    '85 K5: BIG BAD AND MEAN
    K5: Because size DOES matter
     
  5. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Hey Davis, I think you might want to mosey on over to the tech section yourself. Have a look at the 'axle identification' area and you'll see lots of good pictures of the "outsides" of rear and front ends, the axle shafts are not shown. [​IMG]

    The 27 spline thing had me stumped for a while trying to think of a 6 lug application with C-clips that wasn't Chev but was close in size. I never even considered Mopar.

    Oh well boat anchor it is I guess, better luck next time dude![​IMG]

    Rene

    [​IMG]
     
  6. BlazerGuy

    BlazerGuy 3/4 ton status

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    Damn [​IMG], oh well[​IMG] I know a guy with a Dakota so I'll pass it off to him[​IMG]
     
  7. Confederate9

    Confederate9 1/2 ton status

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    tRustyK5~ whoops i jsut saw it said axle identification.
    didnt know it was only with differentials
    my bad.

    Confederate's w/ K5's!
    '85 K5: BIG BAD AND MEAN
    K5: Because size DOES matter
     
  8. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    No big, the tech section is good, I kind of wish there was a section on internals [​IMG]
    Happy New year.

    Rene

    [​IMG]
     
  9. 90K5

    90K5 1/2 ton status

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    Do s10 4x4s have 5 or 6 lugs? I just helped a friend replace his and there are 27 and 28 spline versions. That may be what it is.

    90K5

    See my truck at <A target="_blank" HREF=http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502>http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502</A>
     
  10. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    My 89 was 5 lug.

    Rene

    [​IMG]
     
  11. Casey 86K5

    Casey 86K5 1/2 ton status

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    I have never seen an S-10 with 6 lug axles. They use a 7.5" 10-bolt that has 28 splines and I think a few use 26 splines.

    Casey 86K5

    <A target="_blank" HREF=http://86blazer.coloradok5.com>http://86blazer.coloradok5.com</A>
     
  12. Hobbes68

    Hobbes68 Registered Member

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    This is gonna sound stupid, but did you mark a spline with a magic marker and then count very carefully around from the mark? Don't forget to include the marked spline. I replaced the axles in my truck last summer and I miscounted about 5 times before I got it right. For some reason it's very confusion counting the splines. At least it was for me... If it only has 27 then it could be a Mopar axle.

    Just for information purposes, GM only makes two axles for the 10 bolt 1/2 ton -- 28 spline and 30 spline. The 28 spline is necked down like the one in the photo and was used in up to 1988. Sometime in mid year 1988 GM went to the 30 spline axle.
     
  13. BlazerGuy

    BlazerGuy 3/4 ton status

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    Yep I counted them again and still got 27 splines [​IMG]

    [​IMG]
     

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