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Thread: High/Low changes

  1. #1
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    High/Low changes

    Does anyone know if there's a "correct" way to shift between high and low range?

    The biggest difficulties occur when I engage from low back into high. Tough to the point where I generally rip the gear knob off the stem. Sometimes I'll reverse and that seems to free up a bit of a gap. I've only ground the TC once but I generally don't feel that nice confident click I get from changing from high to low.

    Is there a little trick anyone can share?

  2. #2
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    Big double shuffle and a long pause.
    It takes practice.
    I wouldn't recommend learning as the drive dogs for high and low in the transfercase tend to wear and cause the transfercase to jump out of gear.

  3. #3
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    Bearman is offline TopicToaster Gold Subscriber
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    Quote Originally Posted by rust View Post
    Does anyone know if there's a "correct" way to shift between high and low range?

    The biggest difficulties occur when I engage from low back into high. Tough to the point where I generally rip the gear knob off the stem. Sometimes I'll reverse and that seems to free up a bit of a gap. I've only ground the TC once but I generally don't feel that nice confident click I get from changing from high to low.

    Is there a little trick anyone can share?
    You should have a sticker on the centre lower part of the windscreen that explains how to change transfer gears but just in case yours is missing. Only change when stationary, move the lever and then slowly release the clutch while holding pressure on the lever. Most of the perenties have had a mod to the input gear, it makes them harder to select gear but less prone to disengaging.
    Cheers......Brian
    1985 110 V8 County
    1998 110 Perentie GS Cargo 6X6 ARN 202516 (Brutus)

  4. #4
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    I find there's very little tactile feedback through the TC lever. Also the range of movement in the lever between high & low is tiny.

    As Bearman says, following the correct procedure should work well, particularly changing while stationary and "maintaining effort" on TC lever when moving off.

  5. #5
    Judo's Avatar
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    The gears simply don't align properly, so you need to rotate either side of the transfer case.

    1. Don't be completely stationary. Let the vehicle roll ever so slightly. As you push on the gear lever the gears will align and it will go straight in. (Slight rotation from wheels).

    OR

    2. With 1st gear selected, take out of low/high, start pushing gear lever to low/high and carefully take your foot off the clutch and it will go straight in. (Slight rotation from engine).
    - Justin

    '95 Disco 300TDI - sold
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    My PC works just like the Daihatsu push button. No noise the light on the dash goes on in diff lock and off when out. But I always reverse up a bit to make sure.

  7. #7
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    If you have driven on a relatively hard surface with diff lock engaged there will be transmission wind up which will cause the problem you have described.

  8. #8
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    I thought we were talking about Hi/Lo range not CDLs.

    I have attempted a few on the move Hi/Lo changes and sometimes I am lucky but mostly not - so I now stop. I move the lever to the position I want and keeping pressure on the lever with my hand I slowly move the vehicle and normally the tfr will slip into the range required. After a couple of metere I ensure the lever is home as it can soimetimes still drive but not be locked in.

    Garry
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  9. #9
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    Quote Originally Posted by garrycol View Post
    I thought we were talking about Hi/Lo range not CDLs.

    I have attempted a few on the move Hi/Lo changes and sometimes I am lucky but mostly not - so I now stop. I move the lever to the position I want and keeping pressure on the lever with my hand I slowly move the vehicle and normally the tfr will slip into the range required. After a couple of metere I ensure the lever is home as it can soimetimes still drive but not be locked in.

    Garry
    I shift on the fly personally, low to high at any speed, usually top out in 4th low and flick to either 2nd or 3rd high

    High to low just moving slightly will do it

    But as Gary does is the best way if you are not confident shifting on the fly

  10. #10
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    Quote Originally Posted by garrycol View Post
    I thought we were talking about Hi/Lo range not CDLs.

    I have attempted a few on the move Hi/Lo changes and sometimes I am lucky but mostly not - so I now stop. I move the lever to the position I want and keeping pressure on the lever with my hand I slowly move the vehicle and normally the tfr will slip into the range required. After a couple of metere I ensure the lever is home as it can soimetimes still drive but not be locked in.

    Garry


    CDL should always accompany low range, at least that should be the case 99% of needing low ratio, and the problem described is mostly going from low ratio to high.

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