Quote:
Originally Posted by LateBrakeU2
Many of the 22+ LT1's came with the C8Z51 rotors and pads, if yours has the allen bolts on the front calipers it is of that spec.( BCD)
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I ran the RPO codes and says J55. No other code looks like is a modifier of J55.
I think they have way more codes and configurations than what's showed in the RPO's
As I said, mine is late 2023, C8Z51 looks like. 30mm thickness rotor