Quote:
Originally Posted by Bumbleboy92
Attachment 1122487
Please let me know if there is an issue. I took these numbers from Chevy's press releases and measurements from RockAuto.
I updated the chart with the confusing 12.6" / 321x30 compatible Brembos. From my understanding, LT 1LE cars received 4-Piston Brembos as a part of the 1LE package but they were smaller than SS Brembos and fit the LT 12.6" / 321x30 rotor instead. I'm unsure if the late model LT 1LE cars followed suit or switched to the SS 4-Piston Brembo but this was when the 1LE package was released. I can attest to this as I have 12.6" OEM on my 2016 1LT and have 4-Piston Brembos that fit. Plus the part number for a LT 1LE rotor is 1771158 and the RockAuto specs list 12.6" / 321x30mm - Edit: I doubt they changed them since the LT1 is using the same size. Most likely the LT 1LE trims have been using 12.6" / 321x30mm since 2017 and the LT1 inherited them
For LT1, both PowerStop and RockAuto list 12.6" / 321x30mm as the only size for LT1 front rotors.
RIP factory optioning 6-Piston Brembo's on LT cars
Added the copper free rotor info
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Probably a dumb question, but can I put the SS 13.6 on my LS 1LE? My mechanic has been saying he thinks the 12.6 is too small for the 4 piston brembos