I believe your carrs makes the noise when in motion. hence it is important to identify the place from where the noise is heard. if it is from the fron please use a jack and life up your car. check the rotation of the wheels,if noisy then check on the wheel bearings, brake linings, pads, discs. opne and confirm check the front suspension for damage to the links, the shock absorbers,the bushes that support the arms, and for any chassis damage that is scrapping against the tyres. Do the same for the rear side. Please also try to press down the car for any squeaking. locate the noise and change the part which could be as above. However is you think that the noise is coming from the gear box/ differencial, then it might pose a bigger problem, it could be low oil in your gear box, failure of the counter wheels, the gear drives or shafts. if is important to run the drive while in jack. I hope you get this helps. Good day. .