I'm pretty darn sure a M.S. with coils bolts in. The arms are different on a sport but when I did measurement on a '00 , as I recall, the axle all measured the same as the Gen 2.
You might also concider LSD . Cheaper , no wiring and pumps to mess with,,no driveshaft mod. needed. I preferr my LSD for what I do plus you get advantages of LSD no matter what speed your driving. LSDs are only 9", but I've never heard of anyone breaking one.

dave h.
'89 Raider V6 5spd;Aisin Hubs;; Gen2 LS: frt. brakes, rear coils;U.C.arms;R.trailing arms;idler arm; rear LSD axle w.disc brakes ;2 battery system for Dog's fan; relocated ECU; custom bumpers;J.Baker receiver;Conferr roofrack; t-bar crank.