While in the process of putting a seal kit in my buddys '70 power steering box we found everything under the 4 bolt aluminium "cap" broken in chunks, the main gears seem to be fine and the case looks good. A replacement 4x4 steering box seems to be a hard thing to find around here but we might have found a 2 wheel drive box. So my question is can you swap the sector shafts in this year of truck like the second gens? What about using parts from a 2nd gen box to put this one back together? Any help would be great thanks guys. J.