anyone know where i can get this peice from?

hey guys, i broke this peice off my steering box by accident...below is a picture of the peice that is broken...it is off a 71 power steering box...brand new would cost me 25 bucks which is quite expensive for a puny little peice...if anyone has one lying around or knows where i can get one for cheaper i would appreciate it...also, if there is some sort of late model interchangability that i may be able to find it from the scrap yard, please fill me in...here are the pics....thanks!