Humm.. Interesting. Are you sure about that? I was able to use the "Way Back Machine" (now just plainely called "archive.org") to check out the specs directly from the archive from March 2000 of Toyota.com. Check it out, it's an interesting tool! Unfortunetly they didn't archive toyota.ca, so I can't be sure of the canadian version...

However, if you look at the specs for the 2000 version it clearly mentions the locker option for SR5 and Limited but does not mention it for the base model (4cyl).

Does anyone else know if/when the e-locker was offered with the 4cyl? The way I see it is that since the 4cyl requires a different diff ratio than the V6s they couldn't just stick the same e-locking diff in the 4cyl as an option so decided to ommit it altogether.