i posted this in the Tech thread and haven't gotten any answers, so i thought i'd try here.

i have an '02 GT and i'm replacing the differential. i'm finding differentials for both 28 and 31 spline axles. does anyone know what my car comes stock with, 28 or 31 spline?

 

I am pretty sure they come with 28 splines and you upgrade to a 31spline.

 

ok i've already ordered a new differential and i'm going to need to get some 31 spline axles. any recommendations? i've found some Moser axles for about $270 on americanmuscle.com.

 

are you doing the whole rear end? gears / diff/ and axles?

also yes our cars come with 28 spline axels.

31 splines are an upgrade.