the 4 cyl models which i assume you don't have since you have an LS have discs in the front and drums in the rear
v6 models have 4 way discs some with abs some without
BTW The local club of mx6s and probes will have a autocross meet soon up at that expo center of yours in sactown. It won't be SCCA so no membership fees apply
. Stick around and I'll keep you up to date with local meets.