OTTs might do the trick for you. Jim Christiansen of Inchworm is running OTT arms and pitman arm w/ Toyota rear leaves up front and it is close but no interference. Not sure how far forward the axle is moved...

I am using OTT arms on my Dana 44 and I will definitely have to move my steering box forward. I was hope not to have to do that but oh well. <img border="0" title="" alt="[Frown]" src="images/icons/frown.gif" /> I am planning on rotating the box in addition to moving it forward and using Sky's flat pitman arm. I will be sure to document how it turns out and publish the results on 4x4Wire.