Right, theis is a standard, 3 gear, ball diff, dual pad slipper unit, gearbox. The box is made out of the same material as the chassis, and the fit is very tight, so should stop dirt ingress. Diff is a 12 ball diff, ballraced too, with a caged thrust race (diff lube included, but no thrust grease...). The diff assembles nice and easily, no surprises there, and is silky smooth, the only concern, the instructions lack any info on how to set the diff, and it isn't a 'rully tighten, then back of 1/8th of a turn'.
Once assumbled, it turns nicely, no high spots, and will free up more with use too.
Slipper is easy to assemble, and uses a wheel nut for adjustment.
