These are steps for a '92 Explorer and can be used for Rangers and Bronco II with auto hubs.
Necessary Equipment:
The cost of the hubs and the conversion kit was $185. Then the cost of the wheel bearing socket was $13. Time to do the conversion at a leisurely pace was about 1.5 hours.
1. Start by removing the center caps of the wheels and then loosen the lug nuts while the tires are on the ground with the 3/4' deep socket. Once the lug nuts are loosened, jack one side of the vehicle off the ground and secure with jack stands.
2. Remove the lug nuts and the wheels
3. Once the wheels are off, you can remove the speed nuts (if present) and the auto-hub from the drive shaft.
4. Remove the axle shaft ring with the regular screw driver and hammer (gently). Once the shaft run is removed, the axle shaft spacer can be removed.
5. Now give a gentle pull on the plastic cam assembly, it comes free from the wheel bearing nut.
6. Now you have to remove the locking key from the wheel bearing adjusting nut. Make sure the key is centered with the wheel bearing nut and it comes out very easily with a magnet. They also suggest a paper clip to retrieve it if you don't have a strong magnet.
7. Now with the locking key removed, you have to remove the wheel bearing nut. Mine was six sided, not the normal 4 sides that you usually hear about. The local parts store did not have a bearing socket large enough to fit it, not even the one for a 3/4 ton Ford. If you have a bearing socket that fits, just remove the wheel bearing nut with that. If not, that is where the chisel and hammer comes in. Pound on the wheel bearing nut on a flat side with enough angle to get it to thread off. Mine was already scored from this service by a local tire company a few years ago, so it made it easier.
8. Now you have everything removed. You need to keep the axle shaft ring and spacer to reuse with the manual hubs. Remove everything else, you can toss it or whatever.
9. Install the inner adjusting nut (nut with the pin; the thickest of the 2 nuts supplied with the conversion kit from Warn). Toque that to 35lb-Ft and then back off 90 degrees and re-torque to 16lb-Ft.
10. Then install the bearing retainer washer ( the one that is thin with many holes in it) against the the adjusting nut. This washer is keyed, and takes the place of the locking key from the auto hubs.
11. Now install the outer bearing nut and torque to 150lb-Ft.
12. Replace the axle shaft spacer and the axle shaft ring.
13. Install the new manual hub.
14. Replace the wheel and the lug nuts. Torque the lug nuts to 75-100lb-FT with the wheel on the ground. Then replace the center cap and repeat for the other side.
This is a very easy job to do. If you have never taken apart the hubs on the Fords, allow an extra 30 minutes to figure it out. There is also a lot of other services that you could do at the same time such as: