SPC Upper Control Arms (2nd Gen) and Bump Stop Question

There are taller bump stops but I don't know if tall enough for your app. I don't know the number right now (at work).
ALSO I think those spindles are taller than A-Body spindles AND it looks like those upper arms have a very pronounced arch to them. Plus with a 1.24 Torsion Bar, I'm guessing you are going to lower your ride height a bit. You might need to get a log out of your woodpile to act as a stop.