Pulled my steering gear box for ANOTHER reseal, going to do all the O rings and seals/gaskets. While laying on the ground with the left front wheel off I noticed the rotor looks kinda thin, no pulsing or vibrations, it just looks worn. They’ve been on there since the mid 80’s so they’re pretty new ( HAHA) But I’m concerned about cheap China replacements
They look a little glazed. Plus they're original to the car and grooved. I bet they're under minimum thickness too. New set of rotors, service the wheel bearings and a fresh set of semi metallic pads.
Like Adam said, if there are no problems, leave them alone. You might be surprised how much material has to be removed before they reach their discard thickness. They probably can still be machined during your next brake job. A mic will tell all.
I'd put Powerstop's on. (Bedford Park, Illinois) That's what I did. No regrets. The only thing better than going fast, is being able to stop after that. If I can see the grooves in that rotor with my bad eyes, they're bad! Putting new pads on will only wear into those grooves and wear prematurely. Turning them down, you're going to lose heat dispersion. I just did my '17 Silverado today 50k miles (OEM brakes and pads) and they looked nowhere near that bad. Pads were almost to the steel. Don't crash that car before you put the Qjet back on! Seriously, it's not that much to replace them. You're running down the track at top speed.
No Mark . That center groove was in the original Rotors from the factory . It is designed to keep the brake pads centered and stable .
Must be working! No issues, if I replace the rotors I’m sure I’ll have issues with warping and flash rust from sitting Oh, and the bearings will go bad from from crappy race material.
EBC makes a nice rotor that’s coated and wasn’t that expensive when I did my brakes. Wilwood dual piston calipers were a nice upgrade as well.