Can a NWC T5 tail housing be used with a WC T5? Reason for asking, World Class Ford T5 + Jeep T5 tail housing? I know internal parts are not cross pollinating. Can't confirm or deny the tail housing question however.
This video show the main difference between non-WC and WC tail housings, particularly as it relates to keeping the 5th gear bearing lubricated:
You'll probably find all your answers in this post. https://www.jalopyjournal.com/forum/threads/tech-ultimate-t-5-article.171291/