ZL1 1LE Brake rotor min thickness?

Web9 · 11-28-2021, 09:34 PM

Can someone confirm the minimum (discard) thickness for the front and rear OEM rotors? Thanks.

arpad_m · 11-28-2021, 10:15 PM

Here you go:

Web9 · 11-29-2021, 09:41 AM

Awesome. Thanks!

wakespeak · 09-13-2022, 08:34 PM

34.5mm front after about 3k track miles.

Stephen12ZL1 · 09-13-2022, 09:14 PM

no one is going to machine them these days so replace if they appear questionable (severely cracked or warped)

Vigilante375 · 09-14-2022, 08:25 AM

FYI to those that will replace the rotors. The front and rear caliper mounting bolts are TTY. You can go to a website called screamin chicken and buy the front and rear bolts (together) for $30. Those are reusable and are as good as the OEM ones.

Zl1+911 · 09-14-2022, 08:37 AM

Quote:

Originally Posted by Vigilante375

FYI to those that will replace the rotors. The front and rear caliper mounting bolts are TTY. You can go to a website called screamin chicken and buy the front and rear bolts (together) for $30. Those are reusable and are as good as the OEM ones.

very helpful information. Would you mind providing a link to the product page for easy reference? thanks a lot

MatthewAMEL · 09-14-2022, 09:00 AM

Anyone have the updated, 2022+ manual with the BCD brakes listed?

cdb95z28 · 09-14-2022, 09:10 AM

Quote:

Originally Posted by Vigilante375

FYI to those that will replace the rotors. The front and rear caliper mounting bolts are TTY. You can go to a website called screamin chicken and buy the front and rear bolts (together) for $30. Those are reusable and are as good as the OEM ones.

The caliper bolts are torque to angle, not torque to yield. They are not one time use and the service manual says they are reusable with high temp/high strength threadlocker.

BRAKE CALIPER FRONT J6H.pdf

BRAKE SYSTEM FASTENER TORQUE SPECS.pdf

cdb95z28 · 09-14-2022, 09:18 AM

Quote:

Originally Posted by MatthewAMEL

Anyone have the updated, 2022+ manual with the BCD brakes listed?

I looked at the service manual via AC Delco TDS back in January by using my BCD equipped VIN, and the manual was not updated to show the BCD front rotor specs.

RamAir02 · 09-14-2022, 09:23 AM

Quote:

Originally Posted by cdb95z28

The caliper bolts are torque to angle, not torque to yield. They are not one time use and the service manual says they are reusable with high temp/high strength threadlocker.

Attachment 1108799

Attachment 1108800

Sorry to hijack the thread, but may I ask what service manual this is from? Is it the ACDelco TDS subscription? I still can't believe Helm doesn't have a 2019 service manual available yet.

cdb95z28 · 09-14-2022, 09:28 AM

Quote:

Originally Posted by RamAir02

Sorry to hijack the thread, but may I ask what service manual this is from? Is it the ACDelco TDS subscription? I still can't believe Helm doesn't have a 2019 service manual available yet.

Yep, I looked at getting a print service manual and found what you did. Go here:

https://www.acdelcotds.com/subscriptions

I bought a 3 day subscription to the GM service manuals, I downloaded over 1200 pages for my '22 Camaro and my 3 other vehicles. It's $22 for 3 day access.

Vigilante375 · 09-14-2022, 11:54 AM

Quote:

Originally Posted by cdb95z28

The caliper bolts are torque to angle, not torque to yield. They are not one time use and the service manual says they are reusable with high temp/high strength threadlocker.

Attachment 1108799

Attachment 1108800

Thanks for that.. As far as I knew, they were TTY. But TTA are reusable, to a point.

11-28-2021, 09:34 PM	#1
Web9 Drives: 2018 Camaro ZL1 1LE Join Date: Oct 2017 Location: AZ Posts: 36	ZL1 1LE Brake rotor min thickness? Can someone confirm the minimum (discard) thickness for the front and rear OEM rotors? Thanks.

11-28-2021, 10:15 PM	#2
arpad_m Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017 Location: East Tennessee Posts: 11,603 View My Garage	Here you go: Attached Images __________________ 2018 Camaro 2SS — G7E MX0 NPP F55 IO6 735 rwhp \| 665 rwtq Magnuson TVS 2300 80mm pulley \| Kooks 1 7/8" LT headers \| JRE smooth idle terminator cam \| LT4 FS & injectors \| TSP forged pistons & rods JMS PowerMAX \| DSX flex fuel kit \| Roto-Fab CAI \| Soler 95mm LT5 TB \| 1LE wheels \| 1LE brakes \| BMR rear cradle lockout \| JRE custom tune 1100 - 1/30/18 \| 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 \| 3800 - 2/26/18 4300 - 2/27/18 \| 4B00 - 3/01/18 4200 - 3/05/18 \| 4800 - 3/14/18 5000 - 3/16/18 \| 6000 - 3/19/18

09-13-2022, 08:34 PM	#4
wakespeak Drives: 2020 ZL1 1LE Join Date: Sep 2012 Location: Austin, Texas Posts: 1,335	34.5mm front after about 3k track miles. __________________ 2020 ZL1 1LE [Moroso SC Expansion Tank, otherwise stock]

09-13-2022, 09:14 PM	#5
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,808	no one is going to machine them these days so replace if they appear questionable (severely cracked or warped) __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

09-14-2022, 09:00 AM	#8
MatthewAMEL Drives: 2023 CT5 Blackwing Join Date: Sep 2016 Location: Orlando Posts: 1,618	Anyone have the updated, 2022+ manual with the BCD brakes listed? __________________ 2017 HBM SS 1LE Sold 2023 Wave Metallic CT5-V Blackwing M6

11-29-2021, 09:41 AM	#3
Web9 Drives: 2018 Camaro ZL1 1LE Join Date: Oct 2017 Location: AZ Posts: 36	Awesome. Thanks!

09-14-2022, 08:25 AM	#6
Vigilante375 Drives: 2018 Camaro ZL1 Join Date: Aug 2018 Location: Georgia Posts: 1,368	FYI to those that will replace the rotors. The front and rear caliper mounting bolts are TTY. You can go to a website called screamin chicken and buy the front and rear bolts (together) for $30. Those are reusable and are as good as the OEM ones.

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