I am on the Ford build it site for the 2013 GT premimum coupe and I selected the 6 speed manual, Brembo brake option, etc but I don't see any choice to select the axle. I assume the 3.31 is standard, I would want the 3.73 but I don't see it as a choice. Did they do away with it on the GT or does the web site not have all the options? It used to be like a $350 option.

Joe C

 

The 3.73 is sold under the track package which also has the 19" wheels, Brembros, ESC and different suspension setup

 

The website doesn't have all the options that the dealer will give you. You can select a 3.55 or 3.73 with a manual transmission when you order, but the 3.31 is standard.

It's available in the mustang guide here: https://themustangsource.com/f726/20...-lists-502974/

 

So can I order the 3.73 axle without ordering the track pack then?

Joe C

 

Yes, with a manual transmission. I ordered a 3.55 on mine, think it was an extra $353 (paid invoice).

 

The track pack is basically the basic BB brake package WITH 3.73 diff and a different ESC and suspension setup. You may just be able to add the 3.73 diff if you ask a dealer.

 

What's different with the ESC?

 

Ford's site says it includes upgrade engine cooler and radiator along with the Boss' Torsion differential. Edmunds.com also allow you to price out all the parts and shows you invoice price next to the MSRP

 

you forgot the oil cooler, larger radiator from the Boss 302 and Torsen differential

 

Yeah what he said lol