My 4runner came partially prewired for the elocker. The dash light works, I just had to plug in my ECU and Difflock switch. Basically I was in the same boat as Phong. My approach to wiring the rest was a bit different.
I noticed that the smaller white plug for the rear wiring had the elocker wires in it.

As you can see I addes the remaining wires (only 5). I took the wires out of a 4runner which had the locker and the rest of the harness was already cut(roof was removed). I kept the connectors on both sides with the wires I needed and cut the rest of the wires.
For the rear I removed the 4 prong plugs for the abs and moved the abs wires onto the plug for abs+elocker. Notice the original plugs laying next to the new installed one.

I made a separate harness for underneat the truck from which I removed the abs sensor wires. I'll be having to runs with wires. I took my time and put the plastic jacket on it and put new electrical tape on it. Here is a pic when testing te elocker:

Now I just have to do the mechanical part this summer and it will be all done .
Also my gear ratio will be better for the 31" tires. Right now I think I have 3.90 and the new diff has 4.30.
Some more pics at http://www3.telus.net/public/a6a5113...ocker%20wiring

Sorry about the large pics, I was somewhat excited to have the locker working electrically.

Arjan

 

Nice job!

 

Looks good!

 

Make sure to regear the front and rear the same.
The progress is lookin real good though!

 

Thanks, guys. I have a front axle to with that with the 4.30 gear ratio. Just to keep 4x4ing comfertable :-).