B44.3 new build but seems noisey

[Dkfream]

Hi, just finished building a B44.3 and it seems very noisey, noise seems to be mainly from centre diff but front and rear also louder than I expected( louder than my K1 aero I built ), has anyone else found this and will it become quieter as time passes and it gets run in, seem to be able to hear the metal gears a lot, did put the correct amount of oil in and coated the outer drive with black grease,

Any advice will be helpful