Yes, the dropped axle will affect the Pitman arm angle since the frame is lowered in relationship to the spindles. The simple, but expensive way to handle the problem is to relocate the steering box to the front, and use a later-model box. The bracket for the box can be fabricated to end up with a drag link that's level at whatever ride height you choose.
Lowering seems to be a solution to a nonexistent problem- - - -the engineers spent millions of dollars making things work at normal ride height, and then some hotrodder comes along and thinks he's smarter than the designers. Didn't Forrest Gump's Mama have something to say about that?
Jerry
