2004-07 CTS-V Caliper Bolts

[Hawgdawg]

So after assembling parts over Christmas and buying TSW wheels this week I started my brake job at 4 a.m. I got the front rotors and calipers off and I went to install the CTS-V calipers only to realize the existing bolts won't thread into the caliper (I know it's not recommended to reuse). I didn't panic, I figured I live in Houston, I'll go to autoparts store and if they don't have the bolts I'll go to the dealership.

O'Reilly's didn't seem to have the bolts so I went to the Cadillac dealership at 8:00 a.m. The proceeded to tell me the only place that had THE bolt was a GMC dealership down the road and there was only 1 in Houston according to his computer. He also told me the rear caliper bolts are two different sizes and have a different part number than the front. I have scoured the boards and had not run into anyone saying this to be true. Ugh!

Q1: Are the front and rear Brembo's the same size bolt? If I order online I only want to do it once.

Q2: Does anyone know the bolt's specifications? I believe it's supposed to be an M12x1.75x55?

Q3: Any other ideas to find these bolts in Houston?

[SLA]

Best bet would be to contact Greg@Pace (http://forum.grrrr8.net/member.php?u=92)

[JR09country]

Pm the size bolt you are looking for I can see what I have at work.
Edit.. I see the size, is it plain, what grade and what head.

Sent from my Nexus 7 using Tapatalk 2

[a8jamesa8]

So after assembling parts over Christmas and buying TSW wheels this week I started my brake job at 4 a.m. I got the front rotors and calipers off and I went to install the CTS-V calipers only to realize the existing bolts won't thread into the caliper (I know it's not recommended to reuse). I didn't panic, I figured I live in Houston, I'll go to autoparts store and if they don't have the bolts I'll go to the dealership.

O'Reilly's didn't seem to have the bolts so I went to the Cadillac dealership at 8:00 a.m. The proceeded to tell me the only place that had THE bolt was a GMC dealership down the road and there was only 1 in Houston according to his computer. He also told me the rear caliper bolts are two different sizes and have a different part number than the front. I have scoured the boards and had not run into anyone saying this to be true. Ugh!

Q1: Are the front and rear Brembo's the same size bolt? If I order online I only want to do it once.

Q2: Does anyone know the bolt's specifications? I believe it's supposed to be an M12x1.75x55?

Q3: Any other ideas to find these bolts in Houston?

I just went through a similar project last weekend and the CTS-V caliper bolts are rare and hard to find sitting on a shelf at a dealer or part store, I ended up getting my front caliper bolts thru a Cadillac dealer speacial order and pace performance back order item no one in CA has these on the shelf and it took me 2 weeks and change to get all the bolts rounded up.
Front CTS-V caliper bolt part # 18041878 ( 4 required )
It looks like you need a 12x1.75x40mm bolt to mount the rear Brembo calipers directly to the knuckle. Part #11515778 would do that and looks to be the proper size. But if your using a rear bracket adaptor it should have came with caliper bolts
Hopfully this is of some help, Good luck with the install here is how mine came out

http://i432.photobucket.com/albums/qq44/jamesdburgett/d90621bcd57fd18f74d8cb70bbeb95bb.jpg
http://i432.photobucket.com/albums/qq44/jamesdburgett/340c931b12f2585ef1fc5f40371181bd.jpg

[Hawgdawg]

Thanks for the info. After a "Vision Quest" today I found the bolts for the front.

Yours looks good. Mine is VERY similar/identical. I've got the DBA HSV T3 rotors for the rear as well. I'm planning to install these tomorrow.

17584

[GXP25]

I just went through a similar project last weekend and the CTS-V caliper bolts are rare and hard to find sitting on a shelf at a dealer or part store, I ended up getting my front caliper bolts thru a Cadillac dealer speacial order and pace performance back order item no one in CA has these on the shelf and it took me 2 weeks and change to get all the bolts rounded up.
Front CTS-V caliper bolt part # 18041878 ( 4 required )
It looks like you need a 12x1.75x40mm bolt to mount the rear Brembo calipers directly to the knuckle. Part #11515778 would do that and looks to be the proper size. But if your using a rear bracket adaptor it should have came with caliper bolts
Hopfully this is of some help, Good luck with the install here is how mine came out

http://i432.photobucket.com/albums/qq44/jamesdburgett/d90621bcd57fd18f74d8cb70bbeb95bb.jpg
http://i432.photobucket.com/albums/qq44/jamesdburgett/340c931b12f2585ef1fc5f40371181bd.jpg

You know, you're supposed to quote people when you simply copy/paste what they say, oh I don't know, a year ago.

http://www.g8board.com/forums/showpost.php?p=822463&postcount=14