In both the P-51B and P-51D - When at a full stop, if you apply left or right brakes and then increase throttle (to turn around from rearmming for example) the whole aircraft begins to shake violently.
Letting off the brake does not stop the shaking. You must reduce throttle to idle to get it to stop.
If you apply too much throttle while the plane is shaking, the gears and wings break off. Unfortunately, Blckshp and I discovered this bug after rearming on Friday Night Squad Ops.