The ones I posted have four gears and do not require reverse rotation R&P.Hummer geared hubs reverse rotation, so the diffs have to be addressed. Hmmwv essentially run the front and rear diffs reversed. Theres only two gears in those hubs.
What @HUMMER/Expeditions shows I think are Jesse Haines portals. The brakes appear to be addressed using bolted on brackets.Who did the work?