So when I bought our commander used, u couldn't even put it on the trailer without it grinding in hi gear. I pulled the sidecover, replaced the hi gear slider and gear, along with the fork, and all the snap rings(bent). Anyway, when you drive it, around 40-45 mph, it acts like it's jumping out of gear. I actually stood on it, got it up to 55, and it jumped out for a second like it was in neutral for a second. So I'm wondering what I missed? Shift cable is adjusted properly as well. Thanks!!