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Thread: Series transfer case help required - urgent

  1. #1
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    Series transfer case help required - urgent

    Howdy,

    I have just returned from Fraser Island yesterday, great trip, except? Started off in 4wd and returned in 2wd. Not an easy feat getting from one side of the island through the sand with only the rear wheels working.

    What I really need is some info on the series transfer cases. before the usual chants of use the search button I have to no avail. In essence I drive a series 2a with a ford 4.9 and a C10 auto box running all the rest of the drive train from a series 3 V8, (diff, etc). up until I drove up off the beach up a steep sandy track she worked like a dream. Then there was a clunk and no more front wheel drive. There was a couple of clatters coming from the box a little while earlier but nothing too extreme.

    I guess I'm trying to find some general info on the series tfr box how many variants, were there different ratios, was the V8 and other variants the same etc. etc.

    And more importantly is this a common problem. 24 years in the army and I havnt broken one before (I realise that the infantry drive delicately). I know I am seeking a lot of general info but before I acquire a tfr case am I getting the right one?

    Any info would be great or maybe you could pm me a phone number and I could ring for a chat if typing annoys you as much as it does me. I would really appreciate the intake of knowledge.

    Last but not least if anyone has an old tfr case (in or around Brisbane) that meets the specs making the shed look untidy I would also love to hear from you. I love the old girl to bits but I am starting to pull my hair out.

    Thanks in advance,

    Tim.

  2. #2
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    With a 4.9L V8 (I think that's what you meant) the Land Rover axles aren't really up to much. Unlike the 2a, the Stage 1 V8s weak point is actually in the front axles. I'd say you've sheared a halfshaft. Most likely the shorter driver's side one.
    To check without dismantling the front axle, make sure the diff lock is disengaged and pull on the hand brake (this is mostly for safety's sake), then scramble underneath and play with the front propshaft. If you can turn it (it may be a bit stubborn and graunchy) the problem's in the axle. If not, look to the transfer case. You could also lift one front wheel and try to turn it. With the diff lock out, the propshaft will turn, with it in, you won't turn the wheel. Anything otherwise is a broken axle.
    Hope this helps.

    Dan.
    69 2a 88" pet4, 74 3 109" pet4, 68 2b FC pet6.

  3. #3
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    A series 3 V8 runs an LT95 (Rangerover) one piece gearbox transfer case and is permanent 4WD, is that what you have? Or do you have a Series Landrover part time 4WD transfer case? Do you have a centre diff lock?
    1995 Defender 110 300TDI :D
    1954 86" Series 1 Automatic :eek:
    Ex '66 109" flat deck, '82 109" 3 door, '89 110 CSW V8, '74 Range Rover, '66 88" soft top, '78 88" soft top, '95 Disco ES V8, '88 Surf, '90 Surf, '84 V8 Surf, '91 Vitara.

  4. #4
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    Tfr case dramas

    sorry, I may have bum drummed you the rear diff is a 24 spline Salisbury with a macnamara manual diff lock 4.54 (I think) I was told that these were out of a V8? I don't think the front diff is out of a V8, because, I was told that if I wanted diff lock in the front I would need a stage 1 front diff.

    So are you guys saying it may be the axel not the tfr?

    This is definably a part time set up with no ctr diff lock.

    thanks,

    Tim.

  5. #5
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    Do you have free wheeling hubs make sure they are engaged

  6. #6
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    No free wheelers,

    I had spent the last couple of days churning through the sand, effortlessly, the forward 2 wheels started at the bottom and stopped half way up. Hence I didnt make it.

    I wish it was that simple!

    Tim

  7. #7
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    Sorry, Tim, I just assumed when you mentioned Series 3 V8 driveline that you started with a Stage 1. I haven't heard of a Stage 1 transfer case (full-time 4x4) giving up like that, which is why I guessed front axle. In fact, I think if one did give out, you'd have no drive whatsoever. If it's a standard series transfer (part-time 4x4), I guess it would break given your powerplant. Beware, too that if you have different diffs (Series 4.7:1, Stage 1 3.54:1) in each axle, the wind-up WILL break stuff.

    Dan.

  8. #8
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    If you put the transfer case in 2WD and the gearbox in neutral, can you turn the front drive shaft? If you can you have broken something in the front end. A series 3 V8 salisbury is 3.54 ratio, a 4 cylinder one is 4.7:1
    1995 Defender 110 300TDI :D
    1954 86" Series 1 Automatic :eek:
    Ex '66 109" flat deck, '82 109" 3 door, '89 110 CSW V8, '74 Range Rover, '66 88" soft top, '78 88" soft top, '95 Disco ES V8, '88 Surf, '90 Surf, '84 V8 Surf, '91 Vitara.

  9. #9
    JDNSW's Avatar
    JDNSW is offline RoverLord Silver Subscriber
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    You have me puzzled - all Landrover V8 drive trains have had a full time four wheel drive transfer case.

    But if you have a 2/4 transfer case, if it is a Rover one, it has to be a Series T/C. These were essentially the same (and interchangeable as a unit) from 1951 Series 1 through to the end of Series 3 production, with minor changes to ratios and, from about the middle of S2a production, a heavier intermediate shaft. But since it is coupeld to an auto box, it is possible it is not even a Landrover part, or if it is, may have been modified to fit.

    If it is a Series T/C, they are fairly common, and rarely give any problem except noise due to wear or occasionally sticking selectors, although I have heard of catastrphic failures. The bottom plate is easily removed in the vehicle to see what has gone wrong.

    Are you sure it is the transfer case? A broken half shaft or even diff is much more common.

    John
    John

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

  10. #10
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    the only thing that usually stops a series box giving front wheel drive is the selector dog shedding but its pretty rare, more common is killing the front shafts or diffs...

    I suspect that youve taken out a CV more than killed the tcase....

    drop the bottom off of the tcase (pics of the case will let us identify it) and see how much swarf you get.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
    Tdi autoManual d1 (gave it to the Mupion)
    Archaeoptersix 1990 6x6 dual cab(This things staying)


    If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
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