Question: rotors

[mmorse]

Is this the correct part for rear rotors for a 2008 with z51? the image is slightly different than what is on my car. the drilled rows only have two holes per row on my car vs the three shown in the image. Amazon.com: ACDelco 177-1127 GM Original Equipment Rear Disc Brake Rotor: Automotive

 

[Obiwan]

Is this the correct part for rear rotors for a 2008 with z51? the image is slightly different than what is on my car. the drilled rows only have two holes per row on my car vs the three shown in the image. Amazon.com: ACDelco 177-1127 GM Original Equipment Rear Disc Brake Rotor: Automotive

I believe this is recap of C6 Base and Z51 brake parts. I have a base 09 that I am upgrading to Z06 brakes and started researching C6 brake parts.

J55 Z51 Brakes

19208033 CALIPER, Front LEFT BASE & 427
19208034 CALIPER, Front RIGHT BASE & 427
19208039 CALIPER, Rear RIGHT BASE, W/HVY DUTY BRAKES
19208040 CALIPER, Rear LEFT BASE, W/HVY DUTY BRAKES

88964166 CALIPER SUPPORT, Front BASE & 427, W/HVY DUTY BRAKES

89060328 ROTOR, Front BASE & 427, W/HVY DUTY BRAKES
89060329 ROTOR, Rear W/J55 BRAKES


The Z51 has the drilled and slotted rotors, while the base C6 had solid rotor discs.
The Z51 rotors are larger in diameter than the base C6 rotors:

Base.....front 12.8 inch rear 12 inch
Z51......front 13.4 inch rear 13 inch


JL9 Base Brakes

19208033 CALIPER, Front LEFT BASE & 427
19208034 CALIPER, Front RIGHT BASE & 427
19208041 CALIPER, Rear LEFT BASE, W/O HVY DUTY BRAKES
88955505 CALIPER, Rear RIGHT BASE, W/O HVY DUTY BRAKES

88955509 ROTOR, Front BASE & 427, W/O HVY DUTY BRAKES
88955498 ROTOR, Rear W/JL9 BRAKES

I believe this to be correct. Any comments from others would be appreciated.

 

[mmorse]

thanks for the response. I know the z51 rotors are drilled and slightly larger. I'm trying to determine if the particular rotor I listed is the correct one for my car. those numbers you listed, are they GM numbers?

 

[Obiwan]

thanks for the response. I know the z51 rotors are drilled and slightly larger. I'm trying to determine if the particular rotor I listed is the correct one for my car. those numbers you listed, are they GM numbers?

The part numbers are GM. I listed the rotors for the Z51. The part you listed is GM pn 22812096, you will see the GM p.n., if you look farther down in the Amazon listing. That is a Z06 rotor.

 

[mmorse]

thanks again. I believe the correct rotor is this: Disc Brake Rotor Rear ACDelco GM Original Equipment 177 925 | eBay

 

[Obiwan]

thanks again. I believe the correct rotor is this: Disc Brake Rotor Rear ACDelco GM Original Equipment 177 925 | eBay

On Amazon ACDelco 177-0925 GM Original Equipment Rear Disc Brake Cross Drilled Rotor. $10 cheaper.

 

[mmorse]

I saw that, deleted the eBay lasting and added the Amazon listing. going to check with autozone. found the larger drilled front rotors there for $53 ea. and they are identical to the OEM rotors. they have been on my car for a couple weeks now. hoping they also have the rears. maybe able to save a few bucks over Amazon.