Kind of a stupid question but are the front rotors the same size as the back ones? The reason that I ask this is that I noticed that on advanced auto parts that they have two different rotors one being a back and the other a front with a price difference of almost ten dollars. My truck is a 2001 F150 5.4l scab.

 

I don't know whether that's the right question. It is not size so much as configuration. The rears include a drum for the parking brake. They're just fundamentally two different parts. This is almost universally true with front and rear rotors.

 

Oh I completely forgot it had a parking brake, that makes sense now thanks.