First of all, it's RPM (Revolutions Per Minute). RPM's would indicate Revolutions Per Minutes. Then the question would be over how many minutes?
Much like this site which has a lot of misinformation posted regularly, including in this thread, that linked site is wrong.
The E-locker could also be had with 4.56, and 4.10 gearing in the 3rd gen 4Runner. It was dependent on what engine and transmission the particular 4Runner was equipped with.
No. When the Torque Convertor locks, the RPM will drop. If you get on the gas enough for it to unlock, the RPM will rise.
Yep. In addition, the different transmissions also have different overdrive ratios.
Overdrive ratios:
W59 .850
R150F .838
A340 .705