hi, you need to order your jeep with the 24s package on the sport
to get the. half doors, or you could order the base jeep and add the halfdoors aftermarket, study the jeep brochure if you do order it
then u get 3.21 rear or 3.73 and limited slip diff. also you could go big
$$ and get the Rubi', jeep can have a range of 22,800 to 32k plus, my
2012 was 26.5 k and set up with auto, power package,side step ,limited
slip, cherry red, it runs fine with 0 problems...have fun every day...