Thanks biglake
I appreciate your response.
i'm contemplating putting serrations on the sides of the wrr stock link arms so that when lengthened, The serrations will keep link length in check.{vaguely similar to a rack and pinion}
Serrations have been used many years as positive positioning for door hinge adjustment on passenger airplanes.
Folks
I obtained the yamalink center to center distance of the pivots... Cad drawing will be forth coming.