This listing is for a differential.  It was removed from a 5 speed John Deere 111, serial #207497 with a model #252707-0228-01 11hp Briggs and Stratton engine.  It was removed from a working transaxle.  It may fit other models as well.  Please confirm that this part will fit your mower before purchase.  Payment within 2 days of purchase, please.  If you are looking for a part that I don't have listed please ask, I might have one.  Thanks for looking!