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!!

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.

Holy smoked rotor! That is bad for just 57k.

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.

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

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=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.

That'* interesting. I never heard of sintered (powdered metal?) rotors. I can see that it'* possible, but that would need a huge press machine.