I bought a "hub to hub" hiedht's kit and hired a local welder to weld it in... the kit was fairly pricey, but well worth it, because i got all NEW components...
as opposed to the Pinto front end under my Binder... the pinto works, but it still needs to be completely rebuilt (it's also a bit light for a truck that one might be using to haul stuff).
The 2 inch drop spindles put BOTH front ends pretty low, so i bought new stock height spindles.
You can save a couple hundred $$ by buying the hard parts from a vendor, and putting on junkyard spindles and FLAPS brake parts.