well considering your SASing a tacoma i would go with a waggy 44. not sure whether your keeping the stock transfer case setup or not but the cool think about the 44s are that depending on what year you get you can either get a passenger side or driver side drop. also the wms on many of them is going to be about 62.5 which will fit the Tacoma better as far as looks, and it will be closer to the rear axle width. (that's if you plan on keeping the stock rear axle).
i don't think using a toy axle is the way to go with a setup like this, but as far as strength there about the same depending on what you do to it.
