you
won't find 4.10's in a 1st gen explorer, because ford never put em there. luckily the OP is looking for something more commonly available in explorers as well as rangers.
you have to take the spindles off the knuckles, then pull em through the hole that's left when the spindles came off. one half of the passengers side shaft (the long one) will be left stuck to the pumpkin, it splits at the slip joint and the outboard half will pull free, but you have to take the center section off the beam to take the c-clip off to pull the inboard half of that axle shaft.
if youre pulling an entire axle from the junkyard, you wont have to mess with any of that. unbolt the drive shaft, unhook (or remove) the calipers, remove the clamps from the slip joint on the passenger side shaft i discussed earlier, remove the sway bar end links, and the tie rods from the knuckles. at this point (unless im forgetting anything) unbolt the pivot point and remove the nut on the radius arm of one beam. itll take some jockeying but it should just fall free of the truck, assuming its up in the air far enough. pull it sideways so the slip joint pulls apart, and get that beast out of the way. then unbolt the other side and do the same thing. dont forget to grab the steering linkage as well. i honestly dont remember if i used it or not, but i know i took it home with me.
I hauled my entire d35 out of the yard in 2 separate wheel barrows. the drivers side will keep the pig, half of the passengers side axle shaft and the drivers side axle shaft, all the way to the hub. the passengers side beam will have the other half of that axle shaft, the hub and rotor, etc. i left the springs and radius arms attached, and they were included in the price of the axle. if you chose to leave them at the yard, it'll make things a little more time consuming for you. most of that hardware tends to be corroded, and some heat goes a long way toward freeing things up. my yard won't let you take in torches, so that stuff all happens at home.
there's some good reading here (
http://therangerstation.com/tech_library/dana_28_35.shtml) it explains the differences in the d28, d35 as well as the hybrid. if youre going through the trouble of swapping an entire axle, id steer clear of the hybrid, unless its the only thing you can get your hands on.