This would not affect a truck with manual hubs already or one with drive plates (be it ADD or not). This would only affect some (mini only AFAIK) trucks that had automatic hubs. Those are the ones that pop lock when you engage 4WD and unlock by backing up. It's a relatively small number of 1986 thru 1995 Hiace vans and Hilux trucks. They didn't use the thrust washer, star washer and locking nuts like regular trucks.
From the side they looked like this:
'91 Pickup - Imelda
'08 Tacoma TRD - Donna
'09 Kawasaki KLR650
'12 Gunnar Rockhound 29
"Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty. Nobody is able to achieve this completely, but the striving for such achievement is in itself a part of the liberation and a foundation for inner security. " --Albert Einstein