Spacers for low frame arch bar

[Sherwood]

I have a few of the pulpwood cars which have the "low frame arch bar" truck and the new underframe with nearly flat bolster.  This truck needs a small black spacer to work on the pulpwood, and would need this to be put with the replacement lower frame or some of the later cars that come with the lowered frame.  They also need a longer machine screw to go with the spacer I think.

These trucks purchased separately come with generic "wood" screws to use on a scratchbuilt, but please make available the spacer and longer screws to fit the new frame.  They could be packaged with the trucks along with the generic screws, since they would only be used with them. 

What is the prototype for these trucks?  I think I first saw them on the logging cars, they look good on the two foot style pulpwood (other than the extra width) but they are significantly higher and longer than the Grandt Line SR&RL trucks. 

Thanks

[the Bach-man]

Dear Sherwood,
The frames will include the spacers. I'm not sure of the prototype.
Have fun!
the Bach-man