Rear Rotor Grooves
Cargo Master
Joined: Dec 2015
Posts: 2,912
Likes: 506
I had a similar issue when I had Hawk LTS pads and O'Reilly's rotors in the rear of my truck.
I switched to the Motorcraft BRS-757 and Centric High Carbon Rotor, haven't had an issue since.
I like the Hawk pads with cryo slotted rotors in front, however like TMT said they were not matched well with the O'Reilly's rotors.
I switched to the Motorcraft BRS-757 and Centric High Carbon Rotor, haven't had an issue since.
I like the Hawk pads with cryo slotted rotors in front, however like TMT said they were not matched well with the O'Reilly's rotors.
Oftentimes the kits are less expensive than piecing everything together, too, so that makes the decision that much easier
I enjoy reading TMT's posts and appreciate his willingness to share his knowledge.... although I fear in the long run I may not retain much of it and like most I just need something that fits, is easy to order/readily available, and works reasonably well. I'd love to be so knowledgeable on brakes and design but then I'd forget how to tie my shoes.
Hotshot
Joined: Dec 2014
Posts: 17,827
Likes: 3,111
From: Jersey Shore
Hawk LTS are a high metallic compound. They will eat a rotor that is not properly hardened, the cryogenic rotor measure a higher hardness the stock, but that loss in cold coefficient of friction is made up by the pads.
Fleet Mechanic
Joined: Oct 2017
Posts: 1,704
Likes: 164
From: Southwest Ohio
Nothing excites me more than posts by TooManyToys and Mark Kovalsky. There is nothing better than when an expert shares their intimate knowledge of super-detailed technical information.
-- Dave
-- Dave
Hotshot
Joined: Dec 2012
Posts: 11,270
Likes: 1,654
From: Las Cruces New Mexico
Same thing happened to me with some ceramic brake pads, they made some deep grooves on my brand new rotors, threw those pos pads in the trash and installed organic compound brake pads and no more grooves, but the only down side is the brake dust, but I'm cool with it, less expensive to wash a vehicle than buing brakes.
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
May be time for a new shop.
So after only 1500 miles and keeping a close eye on the back brakes its starting to groove again. Slightly but its happening. I asked about the possibility of defective pads and got a pretty lame reply. Sucks because this guy has always been honest and works on every car (4) that I have. I'm tempted to go to the dealer and get some OEM pads and put them on myself
So after only 1500 miles and keeping a close eye on the back brakes its starting to groove again. Slightly but its happening. I asked about the possibility of defective pads and got a pretty lame reply. Sucks because this guy has always been honest and works on every car (4) that I have. I'm tempted to go to the dealer and get some OEM pads and put them on myself
Thread Starter
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Mountain Pass
Joined: Jun 2011
Posts: 115
Likes: 11
From: NC
On another note I did front shocks and a new steering stabilizer and what a difference. Not a Caddy but way better ride.
Hotshot
Joined: Dec 2014
Posts: 17,827
Likes: 3,111
From: Jersey Shore
I don't know what you have in the front, but the Motorcraft Super Duty version should be good for your 2015. That is past my years of service so no direct knowledge of that formulation.
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Fleet Mechanic
Joined: Oct 2017
Posts: 1,704
Likes: 164
From: Southwest Ohio
If your mechanic blamed the grooves on carrying weight, you are doing the right thing by taking your future business elsewhere. He probably didn't expect the pads he installed to be so horrible (or maybe he had to go with a different pad due to availability) but his response to the grooving issue should have been different.
-- Dave
-- Dave
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