what causes whistling noise in front end by left front tire when shifting gears? on 1997 Volkswagen Jetta

When the car is'nt in any gears the noise stops. Car shifts great, runs smooth otherwise. However, the reverse gear is gone.

Asked by for the 1997 Volkswagen Jetta
Axle problem, check boot on side with noise to see if there is an inordinate amount of grease, then look to see if axle boot is split. Sometimes they don't make any noise when not in gear, under load they will make all kinds of insane noises!!! Good luck!