Aftermarket Discs for Front of 99 Suburban

[jep5555]

I am getting tired of turning or replacing the front rotors on my 99. It goes like this: The brakes work great for about a month. Then I start to feel the pulsating that gets worse rapidly. I check the rotors and they are warped just enough to cause the problem. I get them turned or replaced and they are great for another month or so. Then the same thing all over again. I have been told by several people to "get used to it" because that's the Suburban for you.

Anyone else have this problem? Is there a source for a heavier rotor that will not warp as quickly? Any help appreciated!

Thanks,

[GMMerlin]

I have noticed more pulsation problems from Suburban owners that do a lot of stop and go or heavy trailer towing.
The rotors don't get to cool down enough and will warp.
Also turning rotors thins them and makes warping more prevelent.
Another thing that will cause warping is wheel lug overtightening or unequal torque. When you have your wheels removed and reinstalled, make sure the tech uses the proper torque when tightening the wheel lugs...(torque wrench or torque stick....tell him to leave the air gun in his box)

[Bigboo9486]

HELLOOOO i thought that i was the only one. i do do alot of towing and i do notice that it gets worse after the towing. we have a 30 foot travel trailer. and your right about the vibration it only gets worse. i too have been told by several friends who have suburbans and 99 1500 trucks that they go through rotors at a ridiculous rate. i dont think that the answer lies in a heavier duty rotor i believe that the answer lies in a slotted rotor so that the heat can disapate before it causes damage i have put these on my cavalier and it helps alot it seems to be a performance car thing i just wonder if they make them big enough for the suburbans. anything that anyone can suggest would be of help

[GMMerlin]

You may also be pulling too much trailer with not enough truck!
Personally, I would use a 2500 or larger truck to pull a trailer that size.
The engine and drivetrain has the torque to pull the trailer but the brakes may be too small to stop the extra weight....even with trailer brakes.

[jep5555]

Most of my driving is Interstate, very little around town. And I don't tow anything with mine yet. Also, I had the rotors turned the last time and put the wheels back on myself, so I know I didn't overtighten the lug nuts. One mechanic friend suggested that maybe the back brakes are "late" meaning the front ones are doing all the work and that is causing the problem. Haven't had a chance to check that out yet.

I suspect that GM just skimped too much on the rotors and made them too small trying to save on weight or material or whatever! I have seen the slotted ones and wondered if that would make any difference.

[GMMerlin]

Lug nut torque should be 125 ft/lbs.

[dartis]

I had the same problem with my 99. I went to the slotted rotors about 3 months ago, I have not had a problem with them to date. I hope this fixed the problem.