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28 or 30 spline?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by MTPockets, Oct 21, 2000.

  1. MTPockets

    MTPockets 1/2 ton status

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    Gainesville, Florida
    i am still putting my truck back together from last weekends mud run. i found a knuckle for nothing, but the axles are killing me. a local shop had some 10 bolts laying around and they told me i could grab the axle i needed.
    the first one had no hubs or rotors, so i went for it first. turned out they were thicker for a 3/4 ton 10 bolt.
    next i went for the 1/2 ton 10 bolt, wrong spline count! it was 30 instead of 28.
    i will go back monday and try again. i have a set of spares coming from a fellow ck5er, but i was hoping to get her going this weekend.
    WHEN DID THE SPLINE COUNT CHANGE?
    thanx,
    MTPockets.
     
  2. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    1989 was the first year for 30 spline in the 10-bolts. And all Dana 44's were 30 spline.

    [​IMG]
    5,000 Pounds of American Rolling Steel
     
  3. 90K5

    90K5 1/2 ton status

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    89 was the first year for 30, but some still had 28 in later years for some reason.

    90K5
     

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