I would think no from the ball joint to the front Bush distance because 5 has ball joint built in arm and 6 not on arm etc. From front Bush to rear Bush I would think same length etc.
Yeah the bush to bush distance is identical. Reason I ask is I have a 5 wishbone on 1 side and a 6 on the other. It all fits up fine and doesn't look out as such and wheels sit the same (by eye)
Just wondered if it will make mega difference or if it'll be fine until I can source another 6 arm