It's got 7" pistons!
Where can I find this or does anyone have it to post?
I dont believe those are the correct parts for the V3.1.063" front discard thickness
1.0236" rear discard thickness.
The 7mm doesn't make sense to me either. Perhaps it means 7mm from the nominal thickness? Not sure.I looked up '17 CTS with 6.2L. 🤔
Front has a J55 or J56 brake code.
I doubt that you use the rear rotor until it is 7mm thick. That would be something like THIS.