A Few Vertical Lines In New Rotor

[Ant]

Nothing wrong.

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[Ballistica]

Just curious, was this the rear or front? If you have a manual and it’s in the rear, I wonder if it’s from the parking brake being engaged with the rotors heated after a drive?

 

[WD Pro]

Put me in the pad mark gang

WD

 

[njweatherman]

Just curious, was this the rear or front? If you have a manual and it’s in the rear, I wonder if it’s from the parking brake being engaged with the rotors heated after a drive?

Automatic. Driver's side rear rotor.

 

[njweatherman]

Question for you guys!

If FORD refuses to change the rear rotor because they say it is cosmetic, can anyone recommend a stronger rear rotor I can use?
My rear rotors on my last 2020 mustang got marked up too. Why do the rears get marked up, but not the fronts?
Thanks!

 

[K4fxd]

If it is indeed pad print they are fine. You could try different brand or compound pads.

 

[njweatherman]

If it is indeed pad print they are fine. You could try different brand or compound pads.

Are your rear rotors clear and smooth? On my last 2020 Mustang GT, the rear rotors had several circular lines from the pads. I'd like to get a rear rotor that does not get marked up.

 

[K4fxd]

The markings are from the pad material. You could try the Z26 pads. They don't stop as well but don't dust or mark rotors.

Try driving your car and while going 15 MPH or so pull the E brake. If the marks go away you have your answer and fix.

 

[cerbomark]

IF they are pad marks they will come and go on a street driven car.

 

[Oakley]

Question for you guys!

If FORD refuses to change the rear rotor because they say it is cosmetic, can anyone recommend a stronger rear rotor I can use?
My rear rotors on my last 2020 mustang got marked up too. Why do the rears get marked up, but not the fronts?
Thanks!

if ford says there is no problem drive it like you stole it and talk to a lawyer if it causes some serious problem, like a wreck or whatever.

don't overthink it. we are dudes on the internet and most people on this forum don't know shit about turning wrenches.

 

[njweatherman]

if ford says there is no problem drive it like you stole it and talk to a lawyer if it causes some serious problem, like a wreck or whatever.

don't overthink it. we are dudes on the internet and most people on this forum don't know shit about turning wrenches.

I'll find out this Monday. I will post what the outcome is.

 

[Johnny Rockit]

Just curious, was this the rear or front? If you have a manual and it’s in the rear, I wonder if it’s from the parking brake being engaged with the rotors heated after a drive?

Parking brake uses the inside of the rotor from the rear. Separate set of shoes I think.

 

[Howitzer]

Parking brake uses the inside of the rotor from the rear. Separate set of shoes I think.

No...there are no "separate set of shoes" used for our parking brakes, nor is it inside the rotor. There's a metal cable that connects on the back of the caliper. It pulls this mechanism which engages the caliper piston to squeeze the brakes.

 

[WD Pro]

No...there are no "separate set of shoes" used for our parking brakes, nor is it inside the rotor. There's a metal cable that connects on the back of the caliper. It pulls this mechanism which engages the caliper piston to squeeze the brakes.

This

Only Shelby’s have a divorced calliper / separate pads

WD

 

[Johnny Rockit]

This

Only Shelby’s have a divorced calliper / separate pads

WD

I was just thinking out loud. The work vans had an extra set of shoes.

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