well, it may sound like a pain doing this. But you have to pull the rear gear case. I recomend backing all the bolts about 3/4" off, then taking the bottom half off all the way, and with an oil pan ready, just pull (or pry) the case away from the gasket. I strongly recoment changing the rear gasket when doing this, since the case is already off...
it has an 8.8 rear end with a 3.23 ratio.
The 2003 Ford Mustang has 35.8 in. of rear head room.
The 2003 Ford Mustang has 29.9 in. of rear leg room.
The 2003 Ford Mustang has 41 in. of rear hip room.
The 2003 Ford Mustang has 41.4 in. of rear shoulder room.
The rear track of the 2003 Ford Mustang is 5 ft. 0.6 in. (60.6 in.).
2.73
The gear ratio for the 1979 Mustang V8 is 2.47:1
The 2003 Ford Mustang has rear wheel drive.
3.31
The axle ratio on a 1998 Mustang Cobra is 3.27:1
The gear ratio for a 1988 Mustang is 3.45:1 on a standard (four) and 3.73:1 optional (four)