As above, pretty standard setup on most sierras and granadas, I never look for cossie parts when it comes to ABS, a 2.0 DOHC 4x4 for example has the same setup as a 4x4, so I just find parts off of one of those, 9 times out of 10 you'll get the whole lot in better condition for a steal.
Post a photo of the sensor if you have it handy just to avoid any confusion.