Does anyone know how i can figure out how long the control arms need to be for a 10 inch coil lift with the arms in the stock location? i know for a 7 inch the upper is 18 3/4" and the lower is 20 3/16" but i can't figure out the length for a 10". and i know they make the drop pitman arm for up to a 6" lift, but what else can i do to correct the steering for a 10"? i haven't seen any pitman arms that big. thank you.