Go to www.taurusclub.com
. They several write-ups.
You can not use the wagon discs on a sedan. The reason is, in the rear, wagons use shocks and the sedans use struts. BRackets and mount point are different.
I'm in the middle of converting my 2000 Taurus SEL rear drums to 96-99 Sable sedan discs. I bought both rear e-brake cables, loaded 97 sable sedan calipers, new sable brakes lines, slotted and dimpled discs. From the junkyard you need the sable knuckles, back shield plates, caliper brackets and some other parts. Just go to the yard and buy the whole rear caliper/splindle assembly so you have most bases covered. The other members of taurusclub.com still are not sure my bearings will match either (I hope they do!!!)