It seems simple enough but I can't find a picture of a detroit locker for a Sterling diff. I have looked in 20+ pages of google images and all I found was a thumbnail pic. I am trying to identify a locker I have and need a good picture.

225SL-56A is the part number
this Excel file has images
http://www.eaton.com/ecm/idcplg?IdcService=GET_FILE&allowInterrupt=1&RevisionSelectionMethod=LatestReleased&noSaveAs=1&Rendition=Primary&&dDocName=CT_128481

go to softlocker tab on the bottom and scroll to the part number for an exploded view

Thanks for the link. My internals look more like the N locker, and the case is cast not machined like the soft locker case is.