2wd differential question
 

Hi all just wondering if the 2wd models are supposed to have to differential and transfer case oil chanior is that only for the AWD ? Just bought a used one with 160 k and the owner had no clue... also is there a petcock on the radiator to drain the fluid ? found ton of stuff on tranny fluid change but not a lot on diff and tc .thanks in advance for any help

Im sorry I am no trolling or anything, I bought it used last night and just before I left, ( I have not had a mitsu before or SUV in a long time) the owner says, I would change the oil, air filter, tranny fluid, and diff fluid and transfer case fluid in that car, but its a FWD not AWD and thought it was odd but whatever I thought maybe they made it differently, I was confused and figured I could ask here or at the office, found out he was going off of his 4wd sequoia fluid changes.....