The axle swap I was referring to would be a straight axle swap. <img src="/forums/images/graemlins/wink.gif" alt="" />

However, you can do it keeping your IFS and using factory parts: you can swap the non-ADD axle stub/housing from a non-ADD truck onto your ADD diff. Its a bolt-on affair.

You basically get a non-ADD IFS diff, unbolt and remove everything from the driver's side of your ADD diff, and bolt in the non-ADD stuff. The only little tricky part is removing the little ADD stub axle from the diff, but I've always managed to pry it out with a couple of screwdrivers. A proper puller would be a little easier, but not mandatory.
You also need to install a new seal in the cast center section that matches the one on the passenger's side because the oil seal is in the ADD housing that you just removed on the ADD diff. Its fairly self-explanatory once you take everything apart.

You can also do the same thing in reverse if you want to make a non-ADD diff ADD, which I have done as well.

The one tool you will need is an external Torx socket (E-12?), which Napa carries on the shelf, at least here locally. I've gotten by pounding a 7/16" socket on the bolt, but it doesn't always work very well. Those bolts are TIGHT.


The cheap/easy way to defeat the ADD is this though:
http://www.4x4wire.com/toyota/tech/add/