I too just ordered a set of four A/T Revos yesterday from Costco here in San Diego...same price you were given in Mass. Said it would take a few days to get the tires, but with the $60 coupon (and the $165 Costco Rewards dividend coupon I finagled from the wife...), it will be well worth it.
I...
Actually, the rear locking differential is *definitely* optional on the Limited 4WD, at least on the '99 and '00 models. I've been shopping for '99 and '00 Limited 4WD models, and I have definitely run across several that don't have the Locking Rear Differential option.
Actually, I have tried to find pictures of the "lock differential" button via Google, via reading 4Runner reviews & photo galleries, and by looking at the "Everything you want to know about 4Runners" sticky posts...to no avail. That's why I posted a question here as I though some of you would...
I've been looking for about a month now for a white 4WD Limited, '99-'01, and I'm finding that these vehicles aren't as common here in So Cal as they are in other areas of the country with harsher weather. So I may have to buy one from outside of the area. And to make things even more difficult...