Hello all , good guys from here

I havea question for experts with toshiba 2.5 hard TOSHIBA MK6025GAS drive this when boot cannot recalibrate and begins to make knock sounds like 20 twice then the head goes to the park zone ,i was checking the surface and no have scratches or some like this , but the motor the fluid bearing was over time . but when start motort can spin but the motor fluid its hang ,so what do u suggest me try to exchange platters and put in new HDA , or maybe its problems inheads too.

Thanks for all info