Gm rotors - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Bonneville GXP/ Northstar Powered Cars Discuss your Bonneville GXP and/or any other Northstar powered Olds or Cadillac... Including the 3.5L Twin Cam V6 (Short Star ) 4.0L and 4.6L Northstar V8's. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 06-06-2006, 08:35 PM   #1
Junior Member
Thread Starter
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
Custom88 is on a distinguished road
Default Gm rotors

These original rotors on my car were unbelievable! I got them changed today and the vibration I had under braking is completely gone. Under many people'* suggestion, I went with the Hawk ceramic pads and they really are AMAZING. The car stops like you hit a brick wall now. I'm VERY impressed with these pads/raybestos PG Plus rotors as opposed to the stock parts. This is what my rear rotors looked like after my mechanic took them off. He said they were some of the worst rotors he'* seen in a very long time. The dark areas are actual pitts in the metal, about as deep as a quarter is thick (or more). the rotors were literally falling apart over much of the surface. Just thought you'd all like to see how stock rotors looked after 57,000 miles.. it'* scary, and these are only the REAR brakes too!!

Name:  DSCN0467.jpg
Views: 0
Size:  73.7 KB
Custom88 is offline   Reply With Quote
Old 06-06-2006, 08:45 PM   #2
Senior Member
True Car Nut
 
Join Date: Sep 2004
Location: Farmington, Minnesota =MWBF '05 SURVIVOR= =CEBF '06 SURVIVOR= =August '06 COTM=
Posts: 9,130
Thanks: 0
Thanked 0 Times in 0 Posts
LakevilleSSEi is on a distinguished road
Default

Rear discs do that over time because there'* not really a whole lot of stopping power in the rear.....Especially if you end up with an out of whack caliper.
LakevilleSSEi is offline   Reply With Quote
Old 06-06-2006, 09:07 PM   #3
Senior Member
True Car Nut
 
Join Date: Oct 2002
Location: Groton, CT _NEBF 05, 06, 07_
Posts: 2,703
Thanks: 0
Thanked 0 Times in 0 Posts
markwb is on a distinguished road
Default

Holy smoked rotor! That is bad for just 57k.
markwb is offline   Reply With Quote
Old 06-06-2006, 10:39 PM   #4
Junior Member
Thread Starter
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
Custom88 is on a distinguished road
Default

why was this moved to GXP/Northstar vehicles? ALL of the part numbers for the brakes on the Aurora are identical to 2000-2005 Bonnevilles. GXP brakes are completely different than these. Figured 00-05 Bonneville owners would want to see what their rear rotors would/could look like after 57,000 miles. ..

yeah, I have a northstar engine, doesn't mean everything else is different between the two cars, because they're not. For most parts posts, 2000-2005 is perfectly acceptable.

I guess next time I'll lie and say they're from a Bonneville, even though it'* the same thing.
[/rant]
Custom88 is offline   Reply With Quote
Old 06-07-2006, 12:36 PM   #5
Senior Member
True Car Nut
 
Join Date: Feb 2006
Location: Delaware & Long Island NY
Posts: 3,239
Thanks: 0
Thanked 0 Times in 0 Posts
Shadow is on a distinguished road
Default

Quote:
Originally Posted by Custom88
why was this moved to GXP/Northstar vehicles? ALL of the part numbers for the brakes on the Aurora are identical to 2000-2005 Bonnevilles. GXP brakes are completely different than these. Figured 00-05 Bonneville owners would want to see what their rear rotors would/could look like after 57,000 miles. ..

yeah, I have a northstar engine, doesn't mean everything else is different between the two cars, because they're not. For most parts posts, 2000-2005 is perfectly acceptable.

I guess next time I'll lie and say they're from a Bonneville, even though it'* the same thing.
[/rant]

Calm down....there are worse things to get upset about then a moved post.
Shadow is offline   Reply With Quote
Old 06-07-2006, 01:45 PM   #6
Junior Member
Thread Starter
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
Custom88 is on a distinguished road
Default

Quote:
Originally Posted by Shadow
Quote:
Originally Posted by Custom88
why was this moved to GXP/Northstar vehicles? ALL of the part numbers for the brakes on the Aurora are identical to 2000-2005 Bonnevilles. GXP brakes are completely different than these. Figured 00-05 Bonneville owners would want to see what their rear rotors would/could look like after 57,000 miles. ..

yeah, I have a northstar engine, doesn't mean everything else is different between the two cars, because they're not. For most parts posts, 2000-2005 is perfectly acceptable.

I guess next time I'll lie and say they're from a Bonneville, even though it'* the same thing.
[/rant]

Calm down....there are worse things to get upset about then a moved post.
It'* not jus this post. If anything'* posted about the Aurora it'* automatically assumed that its parts aren't the same as the Bonneville'*, and the post is moved here, when in fact the parts are not the same as the GXP Bonneville. Like I said before, just because the engine is a N* engine, doesn't mean every single post about a mechanical problem should be here. This section of the board gets less traffic than the other areas. It'd be great if the ENGINE could be looked over and ignored, when most of the chassis parts are the SAME. Nevermind. Not looking to get myself banned or sound like a whiny little brat.
Custom88 is offline   Reply With Quote
Old 06-07-2006, 06:12 PM   #7
Administratus Emeritus
Certified Car Nut
 
GXP Venom's Avatar
 
Join Date: Jan 2006
Location: Purgatory, Pennsylvania
Posts: 16,538
Thanked 7 Times in 4 Posts
GXP Venom is on a distinguished road
Default

WOW AT 57000 miles Unbelievable. You must be a hard braker and drive thru salt all winter. Dam them are the worst 50k rotors i have ever seen.

The Aurora/Bonnie/GXP thing is a tough one to call and I get confused myself over which parts are inherent to each vehichle. But hey we need something tp talk about on this side of the creek also
GXP Venom is offline   Reply With Quote
Old 06-08-2006, 09:58 AM   #8
Senior Member
Posts like a Northstar
 
Join Date: Sep 2005
Location: Dayton, OH
Posts: 600
Thanks: 0
Thanked 0 Times in 0 Posts
imidazol is on a distinguished road
Default Re: Gm rotors

Quote:
Originally Posted by Custom88
These original rotors on my car were unbelievable! I got them changed today and the vibration I had under braking is completely gone. Under many people'* suggestion, I went with the Hawk ceramic pads and they really are AMAZING. The car stops like you hit a brick wall now. I'm VERY impressed with these pads/raybestos PG Plus rotors as opposed to the stock parts. This is what my rear rotors looked like after my mechanic took them off. He said they were some of the worst rotors he'* seen in a very long time. The dark areas are actual pitts in the metal, about as deep as a quarter is thick (or more). the rotors were literally falling apart over much of the surface. Just thought you'd all like to see how stock rotors looked after 57,000 miles.. it'* scary, and these are only the REAR brakes too!!

I had some pitting in the sintered metal rotors on my 98 LeSabre at 50K. I replaced everything in front with Raybestos better quality rotor (also weighed twice as much) and reman calipers and OEM quality pads (no long life hard pads). Saving weight may be part of the sintered metal use in the rotors.

The other factor, I believe is the salt/chemicals used to deice the roads and their effect on the rotor metal. I note you are in Michigan with lots of salts a lot of the year. I get some here in mid level Ohio.

I'm watching the rotors on my 03 on the rear. They had to be turned under warranty. I'm expecting to have to replace them with Raybestos before I replace the fronts.
imidazol is offline   Reply With Quote
Old 06-08-2006, 12:34 PM   #9
Senior Member
True Car Nut
 
Join Date: Feb 2006
Location: Delaware & Long Island NY
Posts: 3,239
Thanks: 0
Thanked 0 Times in 0 Posts
Shadow is on a distinguished road
Default Re: Gm rotors

[quote=imidazol][quote="C

I had some pitting in the sintered metal rotors on my 98 LeSabre at 50K. I replaced everything in front with Raybestos better quality rotor (also weighed twice as much) and reman calipers and OEM quality pads (no long life hard pads). Saving weight may be part of the sintered metal use in the rotors.

The other factor, I believe is the salt/chemicals used to deice the roads and their effect on the rotor metal. I note you are in Michigan with lots of salts a lot of the year. I get some here in mid level Ohio.

I'm watching the rotors on my 03 on the rear. They had to be turned under warranty. I'm expecting to have to replace them with Raybestos before I replace the fronts.[/quote]


Yeah but to me it looks like his back pads were not grabbing enough to wipe the crud off while braking.
Shadow is offline   Reply With Quote
Old 06-12-2006, 11:05 PM   #10
Senior Member
Posts like a Turbo
 
ZeeVert's Avatar
 
Join Date: Jan 2006
Location: Brighton, Michigan
Posts: 255
Thanks: 0
Thanked 0 Times in 0 Posts
ZeeVert is on a distinguished road
Default Re: Gm rotors

Quote:
Originally Posted by imidazol
I had some pitting in the sintered metal rotors on my 98 LeSabre at 50K....
That'* interesting. I never heard of sintered (powdered metal?) rotors. I can see that it'* possible, but that would need a huge press machine.
ZeeVert is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
What Color should I paint my Calipers/Rotors? Bassplayincrowe General GM Chat 18 06-22-2003 01:24 AM
Heres Some Pics of G2 gold Calipers!w/ new RSM rotors & Nytro67 Your Ride: GM Pictures & Videos 24 06-11-2003 11:42 AM
New Product from DP - brake rotors willwren Performance, Brainstorming & Tuning 21 11-27-2002 12:08 PM
10" or 12" rotors? willwren 1992-1999 7 11-16-2002 05:07 PM
2002 rotors and trunk leak futuregaze 1992-1999 2 09-04-2002 08:02 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 03:36 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.