Axle Spline

Discussion in 'Transmission & Driveline Topics' started by serpent710, Feb 2, 2018.

  1. serpent710

    serpent710 Veteran Member

    Is there a way to tell if I have 28 or 30 splines on my axle without taking it out?
  2. Gary S

    Gary S Administrator Lifetime Gold Member

    Apr 14, 1999
    Bismarck, North Dakota
    What kind of rear end do you have?
  3. BonzoHansen

    BonzoHansen Administrator Lifetime Gold Member

    A stock 2nd gen 8.5 is always 28.

    I think you'd have to remove to id if you suspect changes
  4. big gear head

    big gear head Veteran Member

    Jul 30, 2001
    Central City, Ky.
    Yes, all of the 2nd gen 10 bolt rear ends had 28 spline axles. They can be upgraded to 30 spline if the differential is also upgraded.
    serpent710 likes this.
  5. serpent710

    serpent710 Veteran Member

    Sorry for the delay.
    It's a stock 3:42 rear Z28
  6. serpent710

    serpent710 Veteran Member

    Thank you, It is all stock

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