Just thought I'd touch on this as it's been a bit. My ABS light was on for years, and I found this thread, and purchased the Dodge Durango unit. Following along with this thread:

http://www.vehicross.info/showthread...-FIX-described

I simply separated the 2 halves, and swapped the black part with all the internals. I didn't spray anything, clean anything, etc. Just carefully straight swapped the pieces, and the ABS light immediately went off, and has been off for over 10K miles. The great part is that you can maneuver the entire unit upwards so that you don't have to disconnect the brake lines.

Cheers!