new here and have a question?
 

yeah i kinda haven't been around since the first xmods league hosted the nissian nsx for a prize (i finnished in 9th at the regionals) but i am very rusty because i haven't raced since my teacher and mentor was murdered. anyways i am currently on a path to build my new car. i want to stick with g1 xmods. i have made arrangements to purchase an alloy chassis and i am upgrading li-ion batterys. i plan on going completle gpm with parts. installing awd. i chose a drag motor with turbo. and i have my springs and most of my gears, but i don't know if a rear diff can be used as a front diff because i can't seem to find any difference online, or any mention. so could someone enlighten me as to if i looking for something i already have?