Oliver 399 rollers?

[Whodoo99]

Hi All,

I recently was given an old Oliver 399 that had been taken apart, powder coated and then left in a pile of pieces. I have managed to put a lot of it back together ( I think). I have all of the hardware for the rollers that go on the bottom of the feed tray. However I can figure out for the life of me what they get mounted too. Its not intuitive and I have no clue because I wasn't the one who took it apart.

Any tips? Can somebody take a pic of the bottom for me?

Thanks!