I've searched with no results... It seems like the rotor size for 2003+ might be different. This could be because of the caliper size differences before 2003 also? I am looking for '03 brembo slotted rotors or EBC rotors, but with no luck. Can anybody steer me in the correct direction?

 

I believe the rotor diameter for a 2003 4x4 is 12" (305mm), which changed in '03.

 

I think in June of 03 for changed the rotor size

 

The 4x4 rotor size changed from 11.28" to 12" during the 2003 model year. My 5/03 build has 12" rotors and I have seen info that says the change took place in 3/03. However, Zach Beard's truck is earlier than that and has the 12" rotors so it's anyone's guess.

The only sure way to know for any particular 2003 Ranger 4x4 is to measure the current rotors or have a Ford dealer look it up based on the VIN.

 

like Bob said go measure yours, mine should have been 11.28 but ended up being 12" mine was manufactured in Nov of 02