Pre set all rod ends with check nuts at 1/2 inch and tightened down ( from base of rod end to top of nut ) this provides 5/8 th of thread in the rod end bearing providing room for adjuctments .This should also help provide a symetrical system . Set turnarounds and pinned in center of travel . Squared up control sticks and clamped in place . Found that my cross over tub was slightly big - removed 1/8 " providing 21 1/2" inch centers per call out.