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Thread: M1070 lockers

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    Default M1070 lockers

    Considering an Oshkosh M1070. Confused with lockers specs.
    Does M1070 have lockers in all 4 axles? Are they locked all the time, or limited slip, or are they manually locked in. Does the manual engage control just lock the front axle to the back 3. Not a lot of know how about this truck. Thanks in advance for any an all help.

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    4 Star General Steel Soldiers Vendor simp5782's Avatar
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    Limited slip. There are videos of them trying to get out of mud holes with only 1 tire per axle spinning

    https://www.steelsoldiers.com/archiv.../t-114686.html

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    That is a prime example of the driver's lack of "energy" to get out of his comfortable cab and let some air out of the tires or chain ip the front. Log truckers up here do it all the time.

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    Quote Originally Posted by davidb56 View Post
    That is a prime example of the driver's lack of "energy" to get out of his comfortable cab and let some air out of the tires or chain ip the front. Log truckers up here do it all the time.

    Truck has CTIS so not needed to get out. He can simply push a button. The tires were air'd down to sand/soft mode as you can tell this from the drivers front tires on the inside look. The 1600s are rated at 14,540lbs each. They do not flex much without weight to show any signs of being air'd down.


    Putting on 16.00 chains is a couple hour chore and would probably need some equipment if you arent a big guy. Your loggers are running 10R and 11R22.5s not 1600s.

    The guy in the video is a member here. maybe he will chime in
    2008 F-250 6.4L Powerstroke
    1979 AM General M920
    1984 AM General M915A1
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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    Quote Originally Posted by JphOshkosh View Post
    Considering an Oshkosh M1070. Confused with lockers specs.
    Does M1070 have lockers in all 4 axles? Are they locked all the time, or limited slip, or are they manually locked in. Does the manual engage control just lock the front axle to the back 3. Not a lot of know how about this truck. Thanks in advance for any an all help.
    I read that truck was capable of being fully locked with switches in the cab to control the lockers. Wikipedia reflects that it does have diff lockers, but the author could be mistaking. In the owners manual of the previous generation HET, it describes controls in the cab for diff locks for off-road use only. If you can find the owners manual it should tell you. I think the number is 9-2320-427-10, but it isn't clear to me which M1070 A-generation that manual is for.

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    I also believe they have selectable lockers, but not sure. Several here own those vehicles and hopefully chime in to put us in our place.
    CFO @ Portacharger

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    I have only ever seen the single TR1 Switch on the center dash on the olders HETs for locking the driveline up completely which locks in the Front axle and I believe the #2/3 axle. Not a selectable setup. Transfer case has a Low/Neutral/High Selection and that is it.
    2008 F-250 6.4L Powerstroke
    1979 AM General M920
    1984 AM General M915A1
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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    Following! What are your plans for the M1070? I, too, dream to own one...someday.
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    Quote Originally Posted by JphOshkosh View Post
    Not a lot of know how about this truck. Thanks in advance for any an all help.

    Here’s some good reading:

    https://www.steelsoldiers.com/showth...highlight=1070


    https://www.steelsoldiers.com/showth...highlight=1070
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    There is no cross axle dif locks on the us spec m1070.

    which is quite disappointing I guess Oshkosh had there reason.
    M1070 Oshkosh (US spec)
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