DionR said

Funny thing is (to me) on that broken bracket, based on the pictures in the thread, I bet he could have used a 1/2" to 5/8" plate on the front of the spindle and had a much simpler and stronger bracket. Bolting it to the back of the spindle is what forced the huge offset and (in my opinion) a weak mount.

My current C5 caliper setup is bolted to front of the spindle and I see lots of BBK's using that surface as well. I thought I was going to be able to do the same with the SP calipers but the offset just didn't leave room for a thick enough plate for me to be comfortable with it.

In the end, the GT500 caliper and rotor would probably be the easier setup when compared to the SP calipers I used. The GT500 rotor is shallower so the caliper is further out from the spindle and should allow for a single simple plate to be bolted to the front of the spindle. And the GT500 caliper mounting bolts are further apart making it easier to fit them around the bracket to spindle bolts. Plus the calipers are only like $10 more on RockAuto. Biggest drawback that I can see is the shallower rotor means the caliper protrudes further out and would make wheels harder to source. Not that my setup will be a slam dunk, just a little easier.

I've found 2 piece rotors for the Scat Packs, for about $1300 for the pair (I think). And the later SP's have a monoblock caliper that looks to be the same as what came on the 2018 Demon. So there are improvements possible. But I would bet a GT500 2 piece rotor would be easier to source.

In theory, the setup I have might allow for the 15.4 or 15.7 rotor with 6 piston caliper HC setup to bolt on. But I have no doubt it would require at least 19" wheels if not 20" and I'm not interested in going there.

Click to expand...