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Thread: Floating vs semi-floating difference

  1. #1
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    Floating vs semi-floating difference

    I have a 1958 109 Series 1.
    How do I tell if it has floating or semi-floating rear axle?
    TIA
    Stuart
    Cheers,
    Stu

    1993 Range Rover Vogue SE 3.9lt - languishing
    2 x 1981 3.5lt V8 2dr Range Rover
    1958 Series 1 109" - "Bob" - COVID project

    Who wants another politician as Head of State? Not me:
    http://www.monarchist.org.au/

  2. #2
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    The floating axles have a bolt on hub like all later series/defenders.

    The semi floating have nothing is just a flat surface.

    Floating
    2012-09-09_11-34-21_656.jpg

    Semi Floating
    Series 1 88 (1).jpg
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

  3. #3
    JDNSW's Avatar
    JDNSW is offline RoverLord Silver Subscriber
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    Just look at the rear hub - if it is flat, not sticking out beyound the wheel more than a fraction of an inch, it is semifloating. If it looks the same as the front (assuming you don't have free wheeling hubs) it is fully floating.

    The full floating hub is a separate casting, that rotates on two tapered roller bearings on the hollow stub axle, and is driven by a separate half axle through the stub axle, splined onto the drive flange, which is bolted to the hub. The two bearings in the hub keep the wheel upright, and carry the weight and side loads on the stub axle.

    On the semifloating axle, the "hub" is actually forged as part of the half axle, which turns on a single ball bearing race which is held onto the half axle by a shrunk on collar, and has a bearing carrier that is bolted to the end of the axle housing. The wheel is kept upright by the half axle, which is carried by the wheel bearing at the outer end and the differential side bearing via the side gear it is spline into. The half axle also transfers the weight and side loads to the wheel bearing.

    Hope this helps.
    John

    JDNSW
    1986 110 County 3.9 diesel
    1970 2a 109 2.25 petrol

  4. #4
    Join Date
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    Fantastic! Thanks guys 😊
    Cheers,
    Stu

    1993 Range Rover Vogue SE 3.9lt - languishing
    2 x 1981 3.5lt V8 2dr Range Rover
    1958 Series 1 109" - "Bob" - COVID project

    Who wants another politician as Head of State? Not me:
    http://www.monarchist.org.au/

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