when you look at what you get the $$$$ is justified imo
those are factory dana 44 beams with factory axleshafts, the result is big brakes, stout hubs, overkill beams/axles/u joints/diff, IMPROVED WHEEL BEARING (spacing for big tires) AND an Autofab bracket installation. The bolt circle is changed from 5 on 4.5 to on 5.5 (full size ford)
the beams use uniball pivots instead of bushings to locate them under the vehicle, so the larer dana 44 beams and differential will fit under your Ranger frame
Autofab is not the first to run a d44 ttb under a Ranger, not by a long shot, but he is the first to produce a kit, and Autofab kits/installs are legendary for toughness, reliability and performance.
I believe there are 2-3 stages for this new kit to from just the pivot brackets, radius arms, coil hoops etc (do it yourself coilovers, bumps, coil springs, shocks, beams, whatever) all the way to stage III Autofab install it and custom dana 44 beams and possibly swing set steering.