A couple more. It looks to me like the 4th gear shift fork is getting cooked. That fork moves the 5/6 gear pack by the book. I'm not understanding what the problem is as the 4th gear pressure line doesn't look like it should be affected by the 5/6 pack. also the alignment of the 5/6 pack to the other gears doesn't look right like they are not full on gear to gear.