They sent the wrong wheel cylinder

[gr8hunter1 at comcast.net (Jacob Hawes)]

As the subject says. I payed for 2 beck/arnley wheel cylinders ($13 ea) 
and I received one beck/arnley and 1 what I think is a bendix ($34 ea). 
Should I use them mixed like this, or do I need to exchange the bendix? 
I think I already tossed the boxes and the garbage has already been 
picked up.

-- 
	--Jacob Hawes
Cars:
	'80 Scirocco mk1 "Tuyer"
Sharp pointy things:
	18" HI Kobra "pillow knife"
	17.5" HI Ang Khola Villager "camp axe"
	~48" Custom XVII longsword. unnamed
My Photobucket:
http://smg.photobucket.com/albums/v310/yoippari/