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manual to Allison ATEC/mechanical trans for 11.1 Detroit

Discussion in 'Trucks [ Eighteen Wheelers ]' started by freightlinerman, May 4, 2013.

  1. May 4, 2013 #1
    freightlinerman

    freightlinerman Road Train Member

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    Does anyone know what type of Bellhousing a 9 speed Eaton Fuller is on a 11.1 Series 60? I'm researching into swapping over to a 4 speed HT-740 mechanical, or possibly an ATEC Allison. Not looking for a World(IE, B500) but the older more bullet proof 4/5 speed automatics. The prices are really low now a days. Any more info appreciated. Thanks.
     
    freightlinerman, May 4, 2013
    freightlinerman, May 4, 2013
    #1
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  3. May 4, 2013 #2
    Pablo-UA

    Pablo-UA Road Train Member

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    yep, U can with some minor reprogramming with DDRS. But old pre electronic auto makes truck to be THE REAL gas gussler.....

    I remember old LIAZ buses with fully mechanical auto. Converting to manual increases fuel milage twice.

    What year is the truck? what EEC? I sugest DDEC-III. No J1922 and cant be used with electronic transmission.
     
    Pablo-UA, May 4, 2013
    Pablo-UA, May 4, 2013
    #2
  4. May 5, 2013 #3
    freightlinerman

    freightlinerman Road Train Member

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    I have a DDEC II, so it would have to be an old 740 or ATEC Allison. Why does it make them a gas guzzler? I've driven the HT740's, they can be a little slow to shift and the gap between gears a bit tall compared to the B500. But, your argument is the electronic is worse than the mechanical Allison, why is that?
     
    freightlinerman, May 5, 2013
    freightlinerman, May 5, 2013
    #3
  5. May 5, 2013 #4
    Pablo-UA

    Pablo-UA Road Train Member

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    I can see the only way - swap ECM with EEC-IV and use Alisson 6 st tranny with electronic control

    Old HT-740 got no TC lock up solenoid, no OD. It is enlarged car tranny, really old design. Yep simple and bulletproof, but not modern tranny that lets U save fuel
     
    Pablo-UA, May 5, 2013
    Pablo-UA, May 5, 2013
    #4
  7. Dec 25, 2014 #5
    allisonisatranny

    allisonisatranny Light Load Member

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    Does anyone have a list for a typical conversion from an Eaton Fuller to an Allison B500, 4060 or 4500?

    From the top of my head:

    1. Bell housing
    2. Transmission
    3. Drive shaft
    4. Shift pad
    5. ECU
    6. Oil Cooler

    Am I missing anything?
     
    allisonisatranny, Dec 25, 2014
    allisonisatranny, Dec 25, 2014
    #5
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