Re: Leaf Springs and rear axle 'steer'
Although pretty well answered, the steer of the axle can be changed. For passenger cars, Chrysler set the springs up flat at normal ride height so the rear tracks in on a turn. You may find this MTCS pamphlet from 1968 interesting. http://www.imperialclub.org/Repair/Lit/Master/253/Page02.htm

Probably should start a new thread on leaf spring suspensions...