Anyone know MIN rotor thickness for front rotors?
Joined: Jul 2005
Posts: 8,818
Likes: 468
From: Taxachusetts
Anyone know MIN rotor thickness for front rotors?
82k miles, need to do front brakes again for 2nd time.
Still have front rotors from the first brake job. They look great, so I want to cut them and reuse them. What's the min thickness though?
They barely look worm, so I'm probably good.
Edit: for an 06, front, with 12.6" rotors
Still have front rotors from the first brake job. They look great, so I want to cut them and reuse them. What's the min thickness though?

They barely look worm, so I'm probably good.
Edit: for an 06, front, with 12.6" rotors
Joined: Jul 2005
Posts: 8,818
Likes: 468
From: Taxachusetts
Thanks.
Front are 27.9, so I guess I'm good to go to get them cut and use them.
Rears are toast. I knew they were too thin, so I just let them go and said I'd change them when the pad backing plates started to scrape...which was 2 days ago. Got new rotors and pads for the rear going on next weekend.
Front are 27.9, so I guess I'm good to go to get them cut and use them.
Rears are toast. I knew they were too thin, so I just let them go and said I'd change them when the pad backing plates started to scrape...which was 2 days ago. Got new rotors and pads for the rear going on next weekend.
Joined: Jul 2005
Posts: 8,818
Likes: 468
From: Taxachusetts
I'll get a measurement when i get them done this week, but I think it's something like 0.010-0.020" or so.
Of course, it depends how out of true they are. These were not bad at all. When my car needed brakes, i ordered new rotors just for the hell of it. With the old rotors off, they looked perfectly fine, so i didn't want to throw them out. No grooves, or abnormal wear. If i really wanted to, i could prob toss them back on as-is...but i'd rather do a light resurface first.
Of course, it depends how out of true they are. These were not bad at all. When my car needed brakes, i ordered new rotors just for the hell of it. With the old rotors off, they looked perfectly fine, so i didn't want to throw them out. No grooves, or abnormal wear. If i really wanted to, i could prob toss them back on as-is...but i'd rather do a light resurface first.
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Mine are 38mm
Many rotors will have the min stamped onto them.
I agree with the others above. It all depends on how much material they take off. You can specify that they only take them down to a certain amount if it works for you. I'm talking auto parts stores who turn them, not shops.
Many rotors will have the min stamped onto them.
I agree with the others above. It all depends on how much material they take off. You can specify that they only take them down to a certain amount if it works for you. I'm talking auto parts stores who turn them, not shops.
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