SHELBY GT 350 Member
Joined: Sep 2010
Location: see user name
^ What he said.
I'm not personally familiar with SCT, but assuming that it's menu operates similar to Diablo you would just go to a menu option like Modify Parameters which will then bring up a list of things such as axle ratio where you can make changes as appropriate. Read through the owners manual on the device (download one from the manufacturer site if it's missing), it should walk you through this. If you can't figure it out and you originally bought the AM/Bama tuner deal then just contact them and they can get you set up.
2001 GT Convertible
All the usual bolt-on's /200 I6, C4
And a few Explorers too... 2008 4.0 XLT 4x2, 1996 XLT 5.0 4x2, 2003 Sport Trac XLT 4.0 4x4