CaseyVII

was reading a little into that ahah, thanks for reply man! should I look into it more or shouldn't be a worry? first falcon ive ever bought so new to all this ahaha!

So I've just bought a 2010 FG XR6 and I noticed when driving it around that when I let off the throttle and get this whining sound coming from the back. my guess is it may be the diff? has anyone else had this before at all or know anything about this at all?