I would agree that ARB would probably be the best (also means most expensive).
After that it really becomes a matter of $$$.
Welding will be the cheapest but steering could be more difficult.
With a detroit ($$$) you get great durability but also have the problem with steering as it probably would never unlock.
I'm going to put my 8 year old lockrite in the front cause it unlocks nicely now. It isn't worn out...it's just worn in <IMG SRC="smilies/biggrin.gif" border="0"> .
There are some other new lockers that look sort of like lockrites but I have no experience with them.
I was a little intrigued by one of them cause it looked like a lockrite but had no teeth. Can't remember the name of it though.
I've got a used rear FJ80 electric locking diff in the front axle of my FJ55, and it works fine.
Wiring was pretty easy, just an on-on switch, an LED, two two-circuit relays and some wire and connectors. I got the diff complete for $600, new from Toyota the entire diff, housing and locker is about $900 with TLCA discount.
thanks for the info. just read about a command locker sounds like it would have been pretty cool. think I might check out the toyota locker, wonder if you can get one from overseas that direct fits in a 40?
Definately go with a selectable locker (either ARB or Toyota electric). I have ARB's in my FJ40 and electric lockers in my 4Runner. I have driven trucks with lock-rites and detroits up front - they sucked IMHO. If ya don't want selectable for some reason - go with an Auburn.
Save your pennies and go with the best the first time - you won't regret it.
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