yes he is right , its common on 5 gear transmissions,,,,,,,,,,,,,,and happens when you repair/replace your CV joints,,,,,,,,,,,,,,,,mechanic drain all the oil but never fill the transmission up to its fill,,,,,,,,,,,,such noice problems are because of that,,,,,,,,,,,,,,or if your car is really high millage,,,,,,,,,,,
well that 5th gear roller bearing is very very easy to replace,,,,,,,,,,,,need not more than 30 min and cost less than 1000 Rs,,,,,,,,,,,,you check my thread and seach for post cultus transmission overhaulling,,,,,,,,,,,,,although its cultus transmission but you can get a clear idea how all that can be done,,,,,,,,,,,,,,
dont pour excess oil and dont mix grease with it,,,,,,,,,,