suspension lesson
Reply #1 –
Way too short, the links will either try to rip out of the arm or bar holes, or bend when the suspension is at full droop (jacked up) or full bump (speed bumps).
Way too long, the links may swing the bar up so high that parts of it start rubbing on things (inner fenders, oil pan).
The bar and control arms should end up pretty much parallel to each other.
Generic description at bottom of:
http://www.energysuspension.com/pages/endl.html