Hey all, I'm in need of some new rotors soon, as my rear pads are all but worn down, front pads are new, and the weight application difference has pretty much destroyed my front rotors "warped badly". I'm curious though about the different rotor sizes available. I have a basic SR5, V8 2005, but also have 17' wheels. I'm not sure if the 17' wheels weren't an add-on when purchased, instead of from the factory, being as it's a SR5. I'm the second owner, original owner bought it in Illinois. If it matters, I also have a factory sunroof, no spoiler, crome tip exhaust, perm 4x4. I'm about to order the new rotors and pads all around online "for a total savings of over $140bucks over dealership prices" and don't want any suprises when I get into the process. If the car has 17' wheels, am i safe to assume the rotors are 17' as well? Is it an either/or situation, or could there be 16' on the car, but have 17' rotors? Any way to tell without taking them off?

Thanks all!

There's two rotor sizes, 12.6" and 13.2", IIRC. The 12.6's come on all except Limited's and XREAS equipped models (Sport Editions).

On an SR5 17" wheels are sometimes standard sometimes considered an 'upgrade' depending on year, region etc. Just because an SR5 has 17" wheels doesn't mean it has the bigger rotors.

If you don't have a Limited and you don't have XREAS you should have the smaller rotors.

PERFECT ANSWER CJ!! Much appreciate the time spent and response! Also glad to know I can buy the cheaper of the two offered!

you really need to call the dealer's parts dept and have them run your vin. that is the only true way to determine what size you have.

Super old thread but still relevant for this new owner. I have 2003 Limited. Does this mean my rotors are 13.2"? Or is looking for the caliper cast number the best way? Found this post on the web.