This is the ford e4od 4r100 manual valve detent spring with roller. 

 It fits ford e4od and ford 4r100 rear wheel drive transmissions. 

 Normally they break at the roller are on the tip that goes into the little hole.

  e4od detent roller manual linkage old oem# e9tz-7e332-a new oe # f2tz-7e332-a