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CUCV rear diff vs. 93 rear

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by SubYuman, Jan 4, 2005.

  1. SubYuman

    SubYuman 1/2 ton status

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    Is a 14 bolt a 14 bolt, or is my C2500 14 bolt any different? I might be able to get a CUCV diff and save the hassle of swapping gears!
     
  2. k20

    k20 3/4 ton status

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    i dont know about widths on the later trucks, but the cucvs have a detroit locker in them from the factory.
     
  3. imiceman44

    imiceman44 1 ton status

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    Well it depends if you have the SF or the FF.
    14 bolts in the 2500 could be the 9.5" gears (Semifloat) or the 10.5" gears (Full float) plus you need to relocate the spring pads on the axle from a CUCV, but that is easier than changing gears.
    :D
     
  4. SubYuman

    SubYuman 1/2 ton status

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    14b 10.5 FF

    This the the diff I have. DAMN, I was hoping to just drop in the 4.56 rear out of a CUCV, but you say the pads are a different width on the CUCV diff than mt 14 bolt. Oh man!!o muchfor an easy fix...my 3.73 run like a$$ with my 37's!
     
  5. SubYuman

    SubYuman 1/2 ton status

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    D'oh!!

    Just noticed my sig said 4.88's... that was the old burb, not this one.
     
  6. sweetk30

    sweetk30 professional hooker Premium Member

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    gear info

    grab a shim kit and marking compound and switch the carrier and pinion assembely and set up the gears . should be close , possible shim inbetwen the case and pinion unit. oh ya the gear oil also.:cool1:
     
  7. SubYuman

    SubYuman 1/2 ton status

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    internally close then?

    I understand the carrier is different for the 4.56s, so it is close to just a drop in?
     
  8. sweetk30

    sweetk30 professional hooker Premium Member

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    axle info

    do like i told you in the last thread, just switch the hole thing carrier and ring gear together it will fit. and check the contact pattern to make sure lined up .:ooo: :rolleyes:
     
  9. imiceman44

    imiceman44 1 ton status

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    The carrier is different for the gears.
    It still the same in relation to the housing.
    You can drop in the carrier and pinion assembly, with little work, the 14bff is easy to work with, if youhave some patience and logic that is. :D
     

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