Maybe it's time for me to do a write-up and submit it for addition to the tech section... Anyway, my electric locker conversion for my FJ60 was right around $1800 total (which included a full float rear axle assembly, two complete e-locking diffs, two new shafts, front and rear rebuild kits and other various seals, nuts and bolts, gaskets, etc needed. Officially the cost is up near what ARBs would cost you (including install)...but I liked the couple of extra features I received: full float rear end and lower gears (from 3.70 to 4.10). Try getting gears, SELECTABLE lockers and a FF rear any other way and you'll be spending WAY more money than $1800. Also, most of my "big" parts were purchased used, so if you went with brand new, it would cost you atleast double what I paid. The only other part that really sucked was trying to be patient while lookin' for deals and waitin' for them to arrive once ordered.
-Ferg-
(On my way to start into the write-up....)