[cdb95z28]

To further add, my buddy has a '23 ZL1 (non-1LE) with the copper free package. I ran his VIN and here are those caliper #s:

Front:

CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AL37-67 (BCD, J6H)(EXC A1Z) * (INCLS 2, 3, 7-9)(HARBOR GRAY METALLIC)
Callout: 1
#86791545


CALIPER,FRONT BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AL37-67 (BCD, J6H)(EXC A1Z) * (INCLS 2, 3, 7-9)(HARBOR GRAY METALLIC)
Callout: 1
#86791544


Rear:

CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - RH
AL37-67 (BCD, J6H)(EXC A1Z) * (INCLS 2, 3, 6-8)
Callout: 1
#85113994

CALIPER,REAR BRAKE (WITHOUT BRAKE PADS & BRACKET) - LH
AL37-67 (BCD, J6H)(EXC A1Z) * (INCLS 2, 3, 6-8)
Callout: 1
#85113993