breaks lol.........read this about my car, also the rotors are bigger this year, I am considering going from 19 " wheels to 18" next year, after reading this should I, due to all the changes.

One of the best performance evolutions for the Mustang is the new performance pack options that Ford will be offering. It all starts with the “GT Track Package I”. Available with a manual transmission only, the option package includes performance front brake pads, 3.73 axle ratio, and a recalibrated AdvanceTrac program that allows a bit more aggression on the part of the driver before stepping in.

If you want more, you can select "GT Track Package II." Again this package can only be had with a stick-shift tranny and will come along later in the model year. This upgrade includes performance front/rear brake pads, GT500 sway bars and rear lower control arms, retuned struts and shocks, larger 19-inch Pirelli tires, 3.73 axle ratio with carbon plates in the differential, and the recalibrated AdvanceTrac, traction control and anti-lock brakes

These new option packages will give buyers the chance to really get a handling edge without having to bolt in an aftermarket suspension later. “With the new tires, the new shock tuning, some new spring setups and new stabilizer bars, 2010 Mustang customers will get an even better driving experience,” Barnes said

 

What is the source you are getting that the rotors are bigger in 2010?

If that was the case then all these companies that are selling 2005-2009 rotors saying they will fit a 2010 would be selling a product that won't work...

 

my paperwork, here is specs

Brake ABS System: 4-Wheel
Disc - Front (Yes or ): Yes
Disc - Rear (Yes or ): Yes
Front Brake Rotor Diam x Thickness (in): 12.4 x 1.18
Rear Brake Rotor Diam x Thickness (in): 11.8 x 0.75
4-Wheel ABS
4-Wheel Disc Brakes

 

You are right take it from some one who has had to return many things, something as simple as valve cover gaskets, yes they are different even though same 4.6 LOL

 

uh huh, and where does the size differ from the 05-09?

 

The gauge pillar pod just ordered from SOS, he adveristes 2005 + but he found out differ. so Alan hasn't changed page yet but you have to specify 2010 so I got right one first time. Fog lights, look real close 2010 smaller, can take their word will fit 2005 and up/

 

Uneven Pad Transfer is the enemy. Whatever brakes you get, you must bed-in to prevent the vibration commonly referred to as "warp". Thicker rotors are not needed for normal driving.

Here's the procedure to bed-in your new brakes and a good write-up for everyone to understand what is happening:
http://www.zeckhausen.com/bedding_in_brakes.htm

Tire Rack also has a good write up:
http://www.tirerack.com/brakes/tech/....jsp?techid=85

But I'm sure this has been discussed on this board somewhere. Apologies if I'm stepping on another thread.

 

Ok let me back up, Bigger calipars, maybe not rotors, are your rotors that size?

 

Pretty sure the rotors are the same also. Though looks can be deceiving I can tell you those calipers you posted look identical to mine.

 

Maybe I'm assuming bigger rotors cuz they say braking system has been upgraded with bigger calipar, assumed meant bigger rotors, thanks for all the input too.