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What does semi float and full float mean?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by anatomiczero, Mar 10, 2002.

  1. anatomiczero

    anatomiczero 1/2 ton status

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    What does semi float and full float mean? thanks.
     
  2. GMCLegacy

    GMCLegacy 1/2 ton status

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    a 14 bolt semi floater allows you to remove the drums without disasembling the whole hub like the stronger 14 bolt full floater.
     
  3. anatomiczero

    anatomiczero 1/2 ton status

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    ok, thanks.
     
  4. Twiz

    Twiz 1/2 ton status

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    Hold on.... Your not not done yet.../forums/images/icons/smile.gif

    A normal rear axle (semi-floater), will have a a axle-shaft that is directly bolted to the wheel. The shaft is retained in-side the axle houseing by a C-clip (most-common), the weight of the vehical is transmitted from the axle-shaft-flange (where the wheel bolts too) to a roller-bearing pressed into the axle hoseing.

    A Heavy-Duty Full-floater
    Will have the same shaft, as a Semi-floater, but it is bolted to a "weight-suporting hub", so there is no need for it to be retained inside the diff-houseing.
    On the Full-floater, the wheel is bolted to the hub, the hub is suported by two tapered wheel-bearings and there-fore, the axle shaft has to transmit only -input- torque and does not have any vehical weight to support.
     
  5. mike reeh

    mike reeh 1/2 ton status

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    its referring to the axleshaft

    full floaters have none of the vehicle weight on the axleshaft, all on a spindle/hub... that way if the axle breaks, the wheel doesnt come off the vehicle.. anything heavy duty will have full floating axles

    on the semi floaters, the axle shaft and wheel hub are one part.. all the weight is on the axle shaft and a bearing at the end of the axle tubes.. only thing holding the axle in is a C clip on the inner end of the axleshaft (inside the ring gear carrier) .. so if the axle is overloaded or whatever and it breaks, look out bad things could happen..

    for what its worth, all chevy front axles are full floaters, by design.. theoretically you could put hub lock-outs on the rear axle and disconnect them at will.. that would be pretty cool actually

    mike
     

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