NEU motor broken, how to measure, and locktite in motor screws?

[RC-Monster Mike]

Yeah - the USPS prices have gone up significantly over the last few years for packages. 1st class doesn't track very well(or at all, depending on location), or provide insurance, though it would save around $10 for this small order. If you accept the risk, we can make 1st class mail happen - if the package is lost, there will be no recourse, though.