Balljoints spacers are not very helpful without a sort of "steering connections spacers". With the balljoints, we can do some tricks like BJ flips or aftermarket control arms. But we cannot do anything extreme becouse of the steering links. At least, this is true for the 2 gen Rodeos. The steering links are already of pretty high angle on my truck.

The steering links on my Rodeo are connected "under" to the knuckles. Ideal conversion would be an "over" system.

So, a complete perfect IFS kit would be:

1. Diff drop bracket.
2. BJ spacer and/or new control arm.
3. Steering knuckles conversion kit.