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Boatycall's avatar
Boatycall
Explorer
May 06, 2016

Stopping.. or lack there of, when fully loaded-- Brake Pads

I would like to ask this topic be about pads only, here's the back-story.

So... Long story short, I almost always turn my own wrenches. But a circumstance about a month ago led me to have to use a shop down the street. I abruptly needed new front wheel bearings and no time to do it myself, I was leaving the very next day on a week-long vaca. While he was at it, I had him do everything--front pads, rotors and calipers.

Now I don't stop anywhere near as good loaded as I did before, bordering on flat out scary. Brakes feel mushy and lack grab. I have of course went back to him and insisted he put the exact same Ceramic pads I had before. He did not. He said he put these Hawk pads on ambulances. He seemed to think the pads may be bad, and did a like-for-like replacement.

I have had the system power-bled, no air in the system, no change before/after. No pull either left or right from the new front calipers. Infrared temp shows they are clearly working, the rotors get plenty hot. Anti-lock will not kick on loaded now, before I could. I can only get the anti-lock to activate empty now.

So.... Now that I got the back-story covered, back to my original ask --- Pads.

Organic
Semi-Metallic
Ceramic
Carbon-Composite

I had Ceramic. I called EBC brakes today. They said, very convincingly, I should go with thier EBC Carbon-Composite. They said these have the highest friction coefficient of any pad they have for my truck. (Model ED91308 if anyone wants to investigate). $200 for just front pads. The're quite proud of them.

They said they will create the highest gripping power possible on stock (new) rotors without causing overheat. I don't care about dust or actual rotor wear, I want to stop. Period. My truck is an '01 with 70k miles. If I run the rotors out in 20k, heck, that's like 5 years from now for me. but they did reiterate, they won't eat my rotors up.
They claim to have an FMSI friction level coding rating of G--based on a scale from E to H, H being Nascar racing pads.

So--
Pads.

Who has done a pad swap and noticed a difference from before to after - EXCLUDING worn out vs. new, I'm talking going from one brand/type to another when loaded.

Thanx all!

13 Replies

  • Put the EBC green pads front and rear on my 2010 Ram 3500 4x4 megacab pulling a 13.5 k lb fifth wheel before a CA to TX trip. Love them and biggest thing was having to up gain 1 volt on 5ver to match the increased stopping on TV. Stock pads half worn at 48K miles.
  • I swapped mine from F350 SRW to F450 DRW. :) It is really night and day difference. I have new pads and rotors in my garage for my mechanic, but somehow the pads won't just wear out! My wife was sold when she had to panic stop because of an idiot in front of her who just locked up for now reason as far as we could tell ... 70-0. I think her remark was something like it stops faster than any vehicle we have although I doubt it stops faster than my Mustang. ;)

    I'd take EBC's word unless you are upgrading to a F450 or F550.
  • I've always used Semi-Metallics, myself, as I've read more than one article about glazing occurring on some Ceramic pads when they get too hot.

    The downside to semi-metallics is they transmit the heat when they start getting really hot into the brake fluid if you have metal pistons in your calipers and can cause brake fade after a while.

    I won't touch organics, and the Carbon-Composite is new to me.

    From past experience, I find that Semi-metallics grab better than ceramics.

    The mushy brakes sounds like there's air caught somewhere, still. I'm not familiar with newer trucks, but on the older ones when they first added ABS, if you didn't purge the dump valve (or if the dump valve failed open), the brakes would be perpetually mushy.