can any one tell me anything about my gun. the serial number is 107xx it is a S&W 66-2 .357
The number you found is an assembly number, not the serial number. The serial number is located on the bottom of the grip frame (aka the butt). You may have to remove the grips to see it.
The serial number will start with K, xK, xxK, or xxxK ("x" denotes a number), or it will start with 3 letters followed by 4 numbers.