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9.5 sf axel ??

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by bablazer73, Jan 12, 2003.

  1. bablazer73

    bablazer73 1/2 ton status

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    I have a 9.5 semi floater from a 85 3/4 ton I want to put in my plow blazer. Another member has a posi unit from an 88 3/4 ton truck(newer style) I know that the 8.5 axels changed axel splines around that time. does anybody know if the 9.5's did the same? will his posi unit fit my axel?
     
  2. zcarczar

    zcarczar 1/2 ton status

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    If im correct the 9.5" rear axles all have 33 spline axles.
     
  3. Blue85

    Blue85 Troll Premium Member

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    Yes, they are all 33-spline. I put 6-lug shafts from an 88+ into a mid-80's 8-lug version. No problems. The only things that have changed about these over the years that I am aware of is on the ends. There have been different brake sizes, which affects the length of the axle shaft and different lug configurations, which affects the flange, but everything on the diffential is the same.
     
  4. bablazer73

    bablazer73 1/2 ton status

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    great. i am only gonna use the posi. i kinda like 8 lug blazers. look tougher!
     
  5. Blue85

    Blue85 Troll Premium Member

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    </font><blockquote><font class="small">In reply to:</font><hr />
    i kinda like 8 lug blazers. look tougher

    [/ QUOTE ] Usually are tougher!

    Just remember to do a full ring and pinion setup if you swap the carriers. You probably know that already, but just checking.
     

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