Lost a Front Brake Pad Pin

NG329 · 06-21-2024, 08:02 PM

Went to change Rotors and Pads yesterday and noticed that the pin that holds the pads in place with the 13mm nut was missing on the driver side caliper. Any of you track rats ever have one of these vibrate loose in the past?

It might be a good idea to start safety wiring things in the future.

RoaringV8 · 06-21-2024, 09:11 PM

Yes, this happened to me and I had to buy the whole kit as that's the only way I could find the right bolt. It also happened to me on the driver's side. I'm wondering if I just didn't tighten it enough.

eimarshall · 06-22-2024, 12:27 AM

Same. I found it backing out as i was coming off track. The bolt was nowhere to be seen. Ive got a couple spares one hand now. And torque appropriately.

N Camarolina · 06-22-2024, 10:31 AM

27 track days and no lots bolts or pins like you describe.

I'd hazard a guess you guys are under torquing during reassembly, but please let us know if you purposely selected a lower torque value or didn't measure it. Lately I've reduced it by a few ft/lbs in an attempt to ensure I don't round-off the bolt head (hard to get any socket arrangement to sit correctly on the bolt head given local obstructions) and would like to ensure my bolts/pins stay in place.

cdb95z28 · 06-22-2024, 12:37 PM

That bolt is to be threadlocked. GM#89021297. High temp, high strength threadlocker. I use the equivalent Permatex #27200
22lb ft.

I've never had an issue between my '14 SS 1LE and current '22 SS 1LE, 55+ track days.

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NG329 · 06-22-2024, 05:34 PM

Thanks guys! I'm glad I'm not losing my mind.

carguy55 · Yesterday, 04:33 AM

Never had any issue, 87 track days. I just make sure its torqued properly. No mention in the service manual about thread locker on the bridge bolt, but if yours's is coming off, why not.. Torque is 22 lb ft (J6M)

carguy55 · Yesterday, 11:56 AM

This is for the SS 1LE, haven't checked to see if the ZL1 is different.

eimarshall · Yesterday, 12:55 PM

Quote:

Originally Posted by carguy55

This is for the SS 1LE, haven't checked to see if the ZL1 is different. Obviously #2 should say NUT

It is a bolt. The pin has a threaded hole on the end.

carguy55 · Yesterday, 06:00 PM

Quote:

Originally Posted by eimarshall

It is a bolt. The pin has a threaded hole on the end.

you are correct! I'm going back to sleep now

06-21-2024, 08:02 PM	#1
NG329 Drives: Chevrolet Camaro ZL1 1LE Join Date: Oct 2021 Location: NY Posts: 721	Lost a Front Brake Pad Pin Went to change Rotors and Pads yesterday and noticed that the pin that holds the pads in place with the 13mm nut was missing on the driver side caliper. Any of you track rats ever have one of these vibrate loose in the past? It might be a good idea to start safety wiring things in the future.

06-22-2024, 12:37 PM	#5
cdb95z28 Drives: 2022 1SS 1LE A10 BCD WCT+PDR Join Date: Mar 2008 Location: Johnstown, PA Posts: 3,260	That bolt is to be threadlocked. GM#89021297. High temp, high strength threadlocker. I use the equivalent Permatex #27200 22lb ft. I've never had an issue between my '14 SS 1LE and current '22 SS 1LE, 55+ track days. __________________ 2022 1SS 1LE A10 BCD WCT+PDR2014 1SS 1LE NPP RECARO SIM-SOLD1995 Z28 M6 GSC PGM-SOLD1975 NOVA COUPE 300HP 350 TH350 FLASH RED-SOLD

Yesterday, 04:33 AM	#7
carguy55 Drives: 2018 1SS 1LE Join Date: Feb 2017 Location: Austin, Texas Posts: 1,509 View My Garage	Never had any issue, 87 track days. I just make sure its torqued properly. No mention in the service manual about thread locker on the bridge bolt, but if yours's is coming off, why not.. Torque is 22 lb ft (J6M) __________________ www.youtube.com/@Racer_Mike87 Last edited by carguy55; Yesterday at 04:48 AM.

06-21-2024, 09:11 PM	#2
RoaringV8 Drives: 2017 HBM Camaro SS 1LE Camaro Join Date: May 2013 Location: South Jersey Posts: 110	Yes, this happened to me and I had to buy the whole kit as that's the only way I could find the right bolt. It also happened to me on the driver's side. I'm wondering if I just didn't tighten it enough.

06-22-2024, 12:27 AM	#3
eimarshall Drives: 2018 SS 1LE Hyperblue Join Date: Jul 2017 Location: Lacey, WA Posts: 371	Same. I found it backing out as i was coming off track. The bolt was nowhere to be seen. Ive got a couple spares one hand now. And torque appropriately.

06-22-2024, 10:31 AM	#4
N Camarolina Drives: 2021 2SS 1LE Join Date: Aug 2020 Location: Cary, NC Posts: 837	27 track days and no lots bolts or pins like you describe. I'd hazard a guess you guys are under torquing during reassembly, but please let us know if you purposely selected a lower torque value or didn't measure it. Lately I've reduced it by a few ft/lbs in an attempt to ensure I don't round-off the bolt head (hard to get any socket arrangement to sit correctly on the bolt head given local obstructions) and would like to ensure my bolts/pins stay in place.

06-22-2024, 05:34 PM	#6
NG329 Drives: Chevrolet Camaro ZL1 1LE Join Date: Oct 2021 Location: NY Posts: 721	Thanks guys! I'm glad I'm not losing my mind.

Yesterday, 11:56 AM	#8
carguy55 Drives: 2018 1SS 1LE Join Date: Feb 2017 Location: Austin, Texas Posts: 1,509 View My Garage	This is for the SS 1LE, haven't checked to see if the ZL1 is different. Attached Images __________________ www.youtube.com/@Racer_Mike87 Last edited by carguy55; Yesterday at 05:59 PM.

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