grinding noise in low gears

[sleeping giant]

whilst freewheeling(coasting) in low gears ie 1st 2nd or 3rd theres a gringing noise so put foot down on clutch and it goes away just to note the clutch feels like smooth as silk to change gear

 

[Garrett 69]

Thrust release bearing. What's the mileage?

 

[sleeping giant]

148000