athern dd-40 gear kits?

Discussion in 'HO Scale Model Trains' started by matt fisher, Apr 1, 2006.

  1. matt fisher

    matt fisher Member

    :) does any one know if theres a gear kit that will replace the gears that come in the trucks of an athern dd40?

  2. Matt, What is your goal ? More speed or more power ? Might be worth the search, however I've got an older original style Athearn twin motored with flywheels and stock gears that can just about out pull my S-15 pick-up ! ! ! Even though the Sante Fe didn't have any DD-40 s to my knowledge, I had a buddy of mine paint and decal it for me years ago ! :thumb: Joe
  3. matt fisher

    matt fisher Member

    athern dd40

    hi it's matt

    i looking for more speed more power and looking to pull about 60 cars with my sp dd35b
    and my own custom sp u50 that i'm building right now.
  4. shaygetz

    shaygetz Active Member

    An Ernst gear kit for an Athearn 6 axle diesel might do it. I've since found the Trainmaster axles will fit the DD40 and that's a six axle loco. Of course you'd need 2 sets, no doubt. Walthers should have it. What exactly have you done with yours? I have 2, one with the original orange box and one of the later ones with the skew wound motors. I've just finished re-motoring the oldtimer with newer motors and am about to wire them both for DCC. Looking to add about 6-8 ounces to them as well, they should pull the bumper off my Mercury pretty good after that.
  5. doctorwayne

    doctorwayne Active Member

    If the Ernst gearsets will fit, the result will be lower top speed and supposedly greater pulling power. When I remotored three Athearn U-boats, I considered using the Ernst gears, but I was not sure that the thinner gear profile would stand up to heavy pulling as well as the stock gears. Unless you have a lot of tight curves or steep grades, I would think that your locos should pull 60 cars easily, without modification.


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