Rolling straight is never the issue with ackerman.....turning is
Even with the factory lowers ball joints/steering arms simply flipped side for side (front steer configuration ), it will roll easily without weight (motor/trans).
im talking about turning not strait. it rolls in circles beautifully. almost to easily lol i literally just pull on the steering wheel and move the car around. granted i dont have the pumkin in the rearend and all the wheel axles and bearings etc.. are brand new.