Warped rotors again
Lead Driver
Joined: Jun 2007
Posts: 6,757
Likes: 5
From: Corvallis, OR
Beechkid, after your last post, I'm guessing your "college degrees" didn't involve upper level physics or thermodynamics classes. You mentioned degrees (multiple?) without listing them, what are they? WyoTech doesn't count...
Senior User
Joined: Feb 2011
Posts: 273
Likes: 0
I would think if warping rotors were that much of an issue that sever duty vehicles would demand something that wouldn't warp as easily or as quickly as some of you state. I get what beechkid is saying that these heavy duty units don't need it what should our relatively light (by comparison) superduty need them. I'm not buying the snake oil or the kool aid either. I have a 03' CC with a 5.4 and tow a 9800 lbs trailer up and down big bear/up the cajon pass on a now regular basis and these rotors have 60K on them and are doing fine. So i don't know maybe I got a something different then you guys did. But my ***** is holding up fine.
Fleet Owner
Joined: Sep 2005
Posts: 28,609
Likes: 18
From: Lake Tahoe, Nevada
I would think if warping rotors were that much of an issue that sever duty vehicles would demand something that wouldn't warp as easily or as quickly as some of you state. I get what beechkid is saying that these heavy duty units don't need it what should our relatively light (by comparison) superduty need them. I'm not buying the snake oil or the kool aid either. I have a 03' CC with a 5.4 and tow a 9800 lbs trailer up and down big bear/up the cajon pass on a now regular basis and these rotors have 60K on them and are doing fine. So i don't know maybe I got a something different then you guys did. But my ***** is holding up fine.
Yet another good driver!
More Turbo
Joined: Nov 2004
Posts: 713
Likes: 5
From: Minneapolis, MN
On a superduty, you really don't need slotted or cross drilled rotors, unless you drive it like ya stole it on a regular basis. I've had pretty good luck on all of mine, other than rusting issues from sitting, but I can't say I've ever warped a rotor on a super duty. Now my 90 and 96 chevies were a different story. Before switching to cross drilled rotors on those, warpage and brake fade were a major issue. I was turning rotors every 5k miles (lots of in-town stop and go) and replacing the rotors and pads every 10k. The brakes were too dang small, and the rotors way too thin on those trucks right from the factory. After the fuel pump went on the 90 and the rear end blew apart on the 96 in the same day, along with all the brake and transmission issues, I bought a 2000 F350 and never looked back!
Lead Driver
Joined: Jun 2007
Posts: 6,757
Likes: 5
From: Corvallis, OR
Agreed, they really don't have a warping issue if you know what you're doing. We've grossed over 30k several times driving over the mountain in eastern Oregon in my dad's '03 and never had any braking issues, now at 70k still on all the original pads and rotors. One rotor is feeling warped now, but that didn't happen until 65k, under extended warranty, the Ford dealership did ball joints and the gorilla doing the work hammered the wheels back on with the impact wrench unevenly. We always rotate our own tires and properly torque them; one time from this idiot and they warped within a few days... Torque them on evenly, and you won't have any issues. Tighten them unevenly, and it doesn't take much heat to warp them. Happens to any vehicle, not just heavy ones. The local tire store warped the rotors on my old Dodge Intrepid when I got new tires, and I threw a fit until I got them to pay for new rotors and pads (I did the work, didn't want them touching it after that).
Senior User
Joined: Feb 2011
Posts: 273
Likes: 0
Welding is TOTALLY different than a part being used in its regular duty cycle.
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Junior User
Joined: Jul 2009
Posts: 64
Likes: 0
From: Gettysburg
I wish i would have kept my last set of front rotor's, laying flat on the ground you could see the warp-age, even the Ford dealer said they had warped. I've learned over the years, whats on paper is different then what happens in the real world.
Hotshot
Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
Production welding new metals yes. Repair/welding the same pieces off the production floor multiple times over many decades of use, no. Some of the stuff we repaired required being baked for a day before work could even begin. Some of the parts were 100 years old and still being used in production.
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