Judging from Alan's great info it is a RS frame - which I sort of hoped it would be. I still have my trusty drafting ruler from back when I was a draftsman and drawings were made on paper - but after Papyrus. The tower centers are right on 31 feet so I expect the truck centers are too.
Not that I am overly fond of the AM drive because of all the space it consumes they do run pretty well. I am now almost out of options for my much delayed massive RS3 project I made lots of parts for. All of the original Alco drives are dead. My first thought was to make my own drives using the RRM Baldwin trucks. That did not work. So I kicked plan 2C into action. I was not impressed at all with the North Yard drive. I am sitting here looking at 4 of them new in the box. So that is strike 2. Today I found this AM drive and starting thinking about shoehorning a AM drive into the brass shells. I have heard it can be done. My milling machine can make any needed frame modifications. Who has a brass RS3 shell with a AM drive stuffed into it? ***I would like to hear from you and how you did it***. Maybe you have firsthand knowledge of someone else that did it. A few photos would be just awesome as well. I might consider trading these 4 new North Yard drives for 3 AM drives in similar condition as in my attached photo. Thank You, Bill Lane Modeling the Mighty Pennsy & PRSL in 1957 in S Scale since 1987 See my finished models at: <http://www.lanestrains.com/> http://www.lanestrains.com Look at what has been made in PRR in S Scale! See my layout progess at: <http://www.lanestrains.com/My_Layout.htm> http://www.lanestrains.com/My_Layout.htm Custom Train Parts Design <http://www.lanestrains.com/SolidWorks_Modeling.htm> http://www.lanestrains.com/SolidWorks_Modeling.htm PRR Builders Photos Bought, Sold & Traded (Trading is MUCH preferred) <http://www.lanestrains.com/PRRphotos.xls> http://www.lanestrains.com/PRRphotos.xls ***Join the PRR T&HS*** The other members are not ALL like me! <http://www.prrths.com/> http://www.prrths.com <http://www.lanestrains.com/PRRTHS_Application.pdf> http://www.lanestrains.com/PRRTHS_Application.pdf Join the Pennsylvania Reading Seashore Lines Historical Society It's FREE to join! <http://www.prslhs.com/> http://www.prslhs.com Preserving The Memory Of The PRSL
