J
I need an adult on this one. Two rides in a row now, everything starts out fine, but about an hour or so into the ride my rear diff makes an extremely loud and unholy high pitched whine whenever the throttle is applied or I'm downshifting, and i detect a hint of grinding. Then, after a while, it seemingly goes away. It only happens in 4H, regardless of 4wd or 2wd setting. I'm at a loss. I do a lot if riding in desert trails with tons of fine dust...can this thing get dirty? I'm not mechanicaly inclined so I'm trying to figure this out and any advice you guys give would be huge.