Posted by Robby Gragg on August 26, 2010 
Way to go CN...
Posted by docol on August 27, 2010 
I don't get the comment about "four axle power"..SDs are 6-axle units.
Posted by Anthony K Small on August 27, 2010 
What he is saying is maybe they normally used 4 axle power because someone figured this might happen if they used SD's.
Posted by bjtucker on August 29, 2010 
Old SD's with stiff trucks and tight curves do not work well..
Posted by Deval Dragon on August 30, 2010 
CN management knows everything...if the computer says a 2000 hp unit is required. Besides, all 2000 hp units are the same and you don't question the computer, much less management...
Posted by Andrew Wodziak on August 30, 2010 
Wow! The CN would do something like this!
Posted by Ken Huard on August 30, 2010 
Turn a little too tight there?
Posted by Rob Schreiner on August 31, 2010 
As was pointed out to me, it is possibly an issue with maintenance, a lack of lube in the center plate, where the truck pivots at the chassis.
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