Hey i need a little help. I have a 98 2.5 rs. I'm looking to do a wrx ej20 motor and tranny swap. I know quite a bit but the question I have is the gear ratio in the wrx rear diff. the same as my rs. I need to know this so I know if i have to change my rear diff. to use the beefier wrx tranny. Thanks for everyone's time in advance.