Budd may have done some small work on them, but multiple sources from the time period name Avco as the producer of the Arrow body shells.
These later Arrow bodel shells were produced by Avco, not budd. There seems to be confusion about the Arrows. Peter Horn User talk 16:58, (UTC) Manufacturer of Arrow II/III Peter Horn User talk 04:02, 22 October 2012 (UTC) Well, WABCO N-Type and Budd Pin and Cup coupler now redirect both to the same place, namely to railway coupling#WABCO N-Type. Preceding unsigned comment added by CAB IV ( talk I'm not all that familiar with these coupler types, and i don't know if they've been changed since then. Sturmovik ( talk) 23:15, 16 April 2012 (UTC) I have sources claiming the Arrow Is used JA-1 couplers, and that the subsequent arrows used JA-2s. Peter Horn User talk 21:42, 16 April 2012 (UTC) That image explains (matches) this adapter! Peter Horn User talk 22:40, 16 April 2012 (UTC) Yeah go nuts if you have enough information on it. Sturmovik ( talk) 02:56, 16 April 2012 (UTC) So a new section should be added to the railway coupling article to describe this "gizmo".
It might be called the Model N or Style N, but Pin and Cup is a more informative description. What is a Budd "Pin and Cup" style Railway coupling? Peter Horn User talk 00:18, 16 April 2012 (UTC) One of these.