Factory disc brake rotor question

Factory disc brake rotor question

Gonna leave the pair with hubs together and get them turned for sure, hopefully they are good. A pair of rotors bought and shipped is $130- 140 Cdn. Thats buying from Rock Auto or Summit. If I were to buy local it would be more than that. Ones with hubs gotta be worth a $60 gamble. Does anyone recognize what these extra hubs are from? You can see KH on the left one in pic.
Thanks
Steve

340sFastback said
Rock Auto is showing new rotors for $17 so you might want to look into new ones (no hubs just the rotors). And no need to weld on the stud. Like others have said once wheel is bolted down it all gets squeezed together.

mvh said
Hmmm, I can't believe those are the right studs. Either that or the holes are all egged out. I recently replaced my rotors, and they were a tough pull to get them apart, and an even tougher one to seat them again. They should be a TIGHT fit. People are saying "oh, it doesn't matter when it's all tightened down", but you don't want the studs spinning, or falling out on the road when you go to change a tire.

The minimum thickness dimension is stamped into the rim — usually hard to read because of the rust. Don't recall it offhand.

You can buy new slotted cross drilled rotors for these, for about $70/pair. Hardly worth monkeying with ancient dubious ones.