Welcome! The 1993 New Yorker is still a K based car so I moved the post to the EEK section. The Bendix 10 system was very troublesome and complex. if you decide to undergo the conversion even the brake pedal needs to be swapped. here are a couple threads for reference. I am sure there are probably many more floating around ALLPAR,
http://www.allpar.com/forums/topic/150560-93-imperial-abs-10-conversion/?hl=bendix#entry11353245
http://www.allpar.com/forums/topic/120187-permanent-bendix-10-repair/
And this one off of ALLPAR:
http://www.imperialclub.com/Yr/1990/Repair/ABS/index.html
http://www.allpar.com/forums/topic/150560-93-imperial-abs-10-conversion/?hl=bendix#entry11353245
http://www.allpar.com/forums/topic/120187-permanent-bendix-10-repair/
And this one off of ALLPAR:
http://www.imperialclub.com/Yr/1990/Repair/ABS/index.html