Just fitted a spare rebuilt gearbox to my car, without driving it. Its noisy on idle with the wheels off the floor and its noisy when pushing the car in and out of the garage... Like a rough grinding noise!?
Im not driving the car because im waiting for my gearbox oil to arrive, so the gearbox is dry (stupid i know). Now i know its prob why its noisy but should it be so noisy without being driven? My main concern is i dont want to waste £40 of gearbox oil in a shagged gearbox!