2846a belt tracking issue

Having troubles with the far right belt tracking over a little too far to the right. Looking at the rear it appears all belts are slightly to the right maybe by 1/2” at best. Up front they are good. It seems the far right belt for sure has a bigger gap than the rest telling me Only it is tracking farther right. No buildup on any rollers. The book shows to pull the belt and flip it around. Anyone have a idea if I should try this or just tweak the rollers a little? My second question is that it wore into the roller arm guide and wore through it. Then hay got behind it causing it to slice into the belt on the edge. How hard is this wear plate or guide to change out? Any help is appreciated.

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2846a belt tracking issue