Brembo front calipers using 345mm PPV rotors

Suspension, brake, and hydraulic/electric steering discussion.
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Fudgehog
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Re: Brembo front calipers using 345mm PPV rotors

Post by Fudgehog »

Just wanted to give an update and a visual on part numbers previously referenced.

11570788 is slightly longer than the stock mounting bolt but I can confirm it's the same thread.

11570092 is the stock bolt.

They are both 18mm heads. I ordered these through my local dealer. I've attached pictures as a reference. Navy has covered this on page 7 of the brake speculation thread but I wanted to reiterate and provide pictures. Thanks Navy!
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13 Caprice 6.0L, Solo catback exhaust, 3.27 diff, VCM OTR and Volant throttle spacer, MSD coils plugs wires, transmission pan upgrade and widemouth filter. Camaro 18" rims.

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CrashTestDummy
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Re: Brembo front calipers using 345mm PPV rotors

Post by CrashTestDummy »

I called GM Parts Direct and asked about this kit, and the guy on the phone said the P/N was discontinued, with no update, and they have zero kits in stock and are finding no inventory.

The list of calipers for 2016-2019 'Camaros' is dizzying, and is all over the place for prices. Does anyone know the P/N for just the calipers that replace those in this kit?
Gene Beaird,
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2018 Tahoe PPV (her car)
1995 DGGM Impala SS
1985 Firebird - 310 LS1 C Prepared autocross car.
1980 Bluebird Wanderlodge
And some others
Do YOU have my SPID?
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Fudgehog
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Re: Brembo front calipers using 345mm PPV rotors

Post by Fudgehog »

I don't know if this helps but this is the seller I ordered from.

They are indeed 4 piston use the 14mm mounting bolt (the ones in my picture) are are made for 345mmx30mm rotors or 13.6" in diameter. Check the description.

This seemed like the right package for me. They should be going on this weekend and I'll update with either a new thread or details on this one.

Earlier when I called my local dealer about the PN on the caliper it didn't come back for them. It is 84095586 and says LF caliper.

https://www.ebay.com/itm/NEW-GM-OEM-Bre ... 1441927437
13 Caprice 6.0L, Solo catback exhaust, 3.27 diff, VCM OTR and Volant throttle spacer, MSD coils plugs wires, transmission pan upgrade and widemouth filter. Camaro 18" rims.

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Navy Lifer
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Re: Brembo front calipers using 345mm PPV rotors

Post by Navy Lifer »

CrashTestDummy wrote: Fri Jun 21, 2019 1:11 pm I called GM Parts Direct and asked about this kit, and the guy on the phone said the P/N was discontinued, with no update, and they have zero kits in stock and are finding no inventory.

The list of calipers for 2016-2019 'Camaros' is dizzying, and is all over the place for prices. Does anyone know the P/N for just the calipers that replace those in this kit?
Gene, the 5th post in this thread spells out what PN's work. The Camaro PN's are listed in the G8 Forum link, but prices are higher for the Chevy logo calipers.

viewtopic.php?f=18&t=2778#p22066
Navy Lifer
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Re: Brembo front calipers using 345mm PPV rotors

Post by Navy Lifer »

Fudgehog wrote: Fri Jun 21, 2019 2:07 pm I don't know if this helps but this is the seller I ordered from.

They are indeed 4 piston use the 14mm mounting bolt (the ones in my picture) are are made for 345mmx30mm rotors or 13.6" in diameter. Check the description.

This seemed like the right package for me. They should be going on this weekend and I'll update with either a new thread or details on this one.

https://www.ebay.com/itm/NEW-GM-OEM-Bre ... 1441927437

So it appears to be correct for a 345mm application (ie. PPV)--reading further down in the listing--sounds like a good deal, although I'd probably use different pads.

The first sentence (highlighted below) might be a bit misleading, as it mentions "Camaro", when, in fact, these calipers have only been used on 2016 & newer Alpha platform Camaro's, regardless of whether they were also used on pre-16 Buick Regals.

From the ZZP ebay listing:
Description
Brand New!

These are over $350 to $400 each caliper from any GM Dealer

These are the same calipers on all 2014+ Regals, Camaro except for ZL1, Corvette Sting Ray, XTS, CT6, CTS, Camaro Fifty Anniversary edition, etc. Except these are the only ones that just say Brembo on them instead of others saying Camaro, Cadillac, etc. So they can be used on any of these vehicles without having to custom paint them.

These are the same bolt pattern and structure as the ATS Brembo Caliper except they are a little longer and use a larger 13.6" rotor compared to the 12.6" rotor on the ATS.

GM Part # 22917417 and 22917418

AC Delco Part # 172-2614 and #172-2615

Also Includes New Power Stop Evolution Ceramic Brake Pads and Pin Kit

This is the factory front calipers on the premium brake package on the newer 2014+ Buick Regal GS Model. NOT all Regals have the brembo calipers. This is a huge upgrade over the non brembo and this can probably bolt up to other vehicles for a nice upgrade. This have the same bolt separation as the CTS-V brembo calipers except for a larger bolt is needed. The two mounting holes measured center to center is 5" apart. Uses M14 14mm mounting bolts for people wanting to know if this could be used on other vehicles for a custom brake upgrade. From the factory these are used with a 345mm rotor that is 30mm thick.
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Fudgehog
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Re: Brembo front calipers using 345mm PPV rotors

Post by Fudgehog »

Hey guys I got them on and they work great! Very quiet.. I modified the stock bracket for the technafit lines. Now I just have to bleed the system properly, otherwise front suspension project is done and so is brake upgrade.

The stock bolt (bought new ones as mentioned above) had plenty of thread and worked great. No need to order the longer ones.
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13 Caprice 6.0L, Solo catback exhaust, 3.27 diff, VCM OTR and Volant throttle spacer, MSD coils plugs wires, transmission pan upgrade and widemouth filter. Camaro 18" rims.

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Navy Lifer
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Re: Brembo front calipers using 345mm PPV rotors

Post by Navy Lifer »

3 things.....

1. cleanliness is essential--for everyone, it is important to remove all potential contaminants from the friction surface (I will assume you did)

2. this caliper is mounted upside down--bleed ports are always at the top.....this caliper goes on the other side of the car

3. re-using original caliper bolts is contrary to GM SI (Service Info) which calls for replacement (single-use). Whether replaced or not, note that the new bolts have thread-locker pre-applied, and be sure to use thread locker when installing these fasteners.
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Fudgehog
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Re: Brembo front calipers using 345mm PPV rotors

Post by Fudgehog »

Interesting if they're backwards. I was going by the sticker lol. RF went on right front. Damn. Easy fix. Yeah new stock bolts as I mentioned earlier. They were the correct length. I'll use threadlocker when I redo them.
13 Caprice 6.0L, Solo catback exhaust, 3.27 diff, VCM OTR and Volant throttle spacer, MSD coils plugs wires, transmission pan upgrade and widemouth filter. Camaro 18" rims.

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Navy Lifer
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Re: Brembo front calipers using 345mm PPV rotors

Post by Navy Lifer »

could have been mis-labeled, but I suspect the real issue is that for the production application (FWD Regal), the calipers are in "lead" - forward of axle centerline, so the caliper (as marked) would be correct for that vehicle.

Here's a picture of a wheel on a Regal, showing the RF, caliper forward/lead position.
https://s3.amazonaws.com/rp-part-images ... 2375ec.gif
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Fudgehog
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Re: Brembo front calipers using 345mm PPV rotors

Post by Fudgehog »

Got her all patched up now, and actually have decent pressure after bleeding them again. It's maybe not 100% but its definitely drivable with no spongy or mushy feeling.

Funny I had them on backwards lol. I did apply new blue loctite as well and torqued to 30ft lbs and then some.
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