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Old 12-11-2020, 08:07 AM   #64
cdb95z28


 
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Drives: 2022 1SS 1LE A10 BCD WCT+PDR
Join Date: Mar 2008
Location: Johnstown, PA
Posts: 3,209
Quote:
Originally Posted by carguy55 View Post
Looks like a great idea. I need to rebuild mine with vented pistons, of course they will be different part numbers. Did you happen to compare the ones from Racing Brakes vs GM?
All of these 6 piston Brembo calipers used on our late model Chevrolets/Cadillacs all have the same piston diameters, 30,34,38mm.
Whether they are the bigger calipers found on the:
-Gen6 ZL1
-Gen5 Z/28 (CCM)
-C6 ZR1 (CCM)
-C7 ZO6/GS/ZR1 (CCM)
-Gen3 CTS-V

or the smaller calipers found on the:
-Gen6 SS 1LE
-Gen5 ZL1
-C7 ZO6/GS
-Gen2 CTS-V
-ATS-V

There are however two different part #s for the vented piston kit, but it depends on whether they are iron or CCM brakes

23242510 J56 Corvette (iron rotors)
19207043 J57 Corvette/Gen5 Z/28 (CCM rotors)
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Last edited by cdb95z28; 12-11-2020 at 03:19 PM. Reason: Added piston sizes info
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