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Seems that the Seaboard Air Line GP9 I'm working on had some parts from traded in FT units.  Here's a photo of #1912, before it got re-painted into their Jolly Green Giant paint scheme, you can see the square-type journals boxes taken from their FT trade-ins:

 

 

I'm making this from the Lionel Legacy GP9 I have.  Looks like only one set of axles on each truck has the square boxes, so I need to shave off 1/2 of the existing castings on the truck sides and mount some FT casting in their places.

 

I also need to find a WABCO 3-chime air horn.

 

I'll be painting mine in the Jolly Green Giant paint.

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Maybe a bit of technical information about those "big Hyatt Journal boxes" is in order here.

 

1) Those early Hyatt roller bearing journal boxes are the model J1, and came in two versions; the "normal or plain" version pictured above. The "optional" version was the J1 Combination Box, which was even larger, and square, with a bolted-on front cover plate which included a small round bolted-on cover for the mechanical speed recorder drive. Usually only one "J1 Combination Box" was mounted on a locomotive for the speed recorder drive.

 

2) The reason the J1 roller bearing journal boxes were so large was, they included various stacks of shim plates for setting/maintaining the lateral end play of each axle within the truck frame.

 

3) Later, and more modern Hyatt roller bearing journal boxes were smaller and included a special hard rubber spacer and bronze thrust bearing device inside the front cover plate. Those Hyatt boxes were called the JMRA Boxes, and were used right up to and through the 60 series of EMD diesel locomotives.

 

4) The most recent type of roller bearing journals are now the Timken Cartridge types, as seen on both GE and EMD more modern units. Even older units are being up-graded to the cartridge type of roller bearings.   

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OGR Publishing, Inc., 1310 Eastside Centre Ct, Ste 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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