Ed_C
Senior Member
If it can be done with a tacoma, it can be done with a 4runner. The engine bay is pretty much identical.
This is a Tacoma with a manual trans and 4wd,but like white_n_slow said,pretty much identical engine bay and drivetrain on 4Runners.
2JZGTE Swap into a 1998 4x4 V6 5 Speed Tacoma pictures by mmccul3797 - Photobucket
I haven't really looked into it,but do the 4Runner and Tacoma engine ECUs do any type of control to the 4WD system? This is would be kind of a hurdle if you're using a factory Supra ECU in a 4wd swap.