Modern day cars and trucks use helical gears and synchromesh equipment during the gearboxes, that synchronize the rotation of gears which are about to mesh. This eradicates clashing on the gears and would make gear shifting less difficult. In July 2014, Randy Pitchford formally contested the Aliens: Colonial Marines https://fernandolmlhe.blogmazing.com/32957166/the-5-second-trick-for-gearbox