ive always had this quirk with my trans where 5th has been a very vocal gear that likes to whir and whine while engaged. lately ive noticed 2nd, and 3rd are showing signs of this too. Wondering if this is the car hinting for me of an impending rebuild. Note that the whine isnt loud persay, but its definitely there when compared to any other gear, and is also more noticeable when coasting in gear. I highly doubt its gonna detonate like a subaru gearbox, but its something i thought id ask others about. gear oil looks clean enough when last checked. not clear but a light yellow. Oh and it likes to fight going into 1st a lot.
thanks, and hope you all are doing good.