So I fixed the reverse. It ended up being the linkage. The manual says 27mm but I ended up adjusting it all the way out to 34mm which kind of scares me. Re checked the skid and found nothing wrong. I'll just ride it with the noise if you guys insist it's just the transfer rod. Does it sound like a big clunking noise? Because that's what it does to me. Almost as if the track binds up. My dads attack has a small clunking noise but no where near as bad but he does have a 136. Has anyone found a way to eliminate the noise or make it a little more bearable?