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The Athearn Genesis line is silky smooth. I have a few of the SD70's and absolutely love them. Too bad i can't say the same thing about my Athearn Dash 9. I contemplated repowering it using an A-Line repowering kit, but to be honest i don't think it's the motor that's noisy. The bulk of the noise seems to be originating from the u-joints. I've also noticed that since the center wheelset on each truck pivots up and down to compensate for trackwork imperfections that sometimes i get a bit of noise from the gearboxes due to the gears mesh changing. On perfectly flat trackwork there's no problem. <br /> <br />Can anyone suggest something to quiet down the u-joints? I thought about applying some grease in hopes it would dampen some of the sound but i dont want the grease to be dirt magnets. I assume it would take quite a bit of grease to quiet things down but would just end up flinging all over the place. <br /> <br />My Athearn SW1500 is much quieter than the Dash 9 is. I wonder if the problem is because the drive shafts are so much longer. Too bad i can't use the newer style of driveshafts the Genesis line employ...
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