JUST BOUGHT A USED 2000 C70, IT HAS 17INCH WHEELS. I NEED TO REPLACE THE BRAKES/ROTORS. HOW DO I DETERMINE IF I NEED THE 280MM OR 302MM ROTORS AND PADS? EVERY WEB PAGE I GO TO ASKS IF IT HAS 15 OR 16 INCH WHEELS.

 

I just today replaced my rotors and pads on the front of my 1999 C70.

I had the same problem and had to research it through the dealer, and other sources

I have the 17" wheels on my car but the rotors are the 280MM.

I researching i ended up getting the rotors from Pep Boys of all places and you tell them you want the ones for the 15" wheels.
I also went with the upgraded ceramic pads.

The rotors cost $34.99 each and the Pads were $36.99. I paid a ASE Certified Master Mechanic to install for a flat $85.00 for the front.

They work great and fit great and will save you a ton of money.

The back rotors are the same brand from Pep Boys and were $35.99 each and the Ceramic pads were $40.99

Also if you look under your hood by the battery (on my 1999) there is a plate. it has your vin# and other numbers. if you go 5 down you will see a number. My number started with F1 for some reason the parts manager could tell off of this number that my car had the smaller rotors. He also told me that the 300MM were used on the newer and All wheel drive models.

When I went to the dealer in person he looked it up and told me they sell just 1 size rotor for the car at $100.00 each.

Hope this info helps and I can tell you from driving my car today the pep boys rotors and ceramic pads work great on my car. doing the rear rotors and pads tomorrow morning.

Good Luck