I'm planning on moving the motor mount brackets for a new engine. . Mechanics in my part of the world are not at all confident about welding the new motor mount brackets on the chassis. They all talk of stress fractures on the welds. They also claim that if the mounts are not in the correct position engine vibrations etc. could ensue. Also, is MIG welding suitable for this purpose? How does one go about doing all this properly? I couldn't find too much info on the internet. What's the score on the above, guys? Is it really all that complicated?