The atlas 5 cylinder was one of the motors I considered when looking for an engine swap candidate.
the guy who did mine put a i5 in an FJ80, bone stock, with good results before mine. i think the i5 would be awesome in a 40, or even a 60. my rig decked out is just too heavy.
Cool swap. What transmission and tcase did you use or did you stick with the Toyota stuff? Looks like Advance Adapters has a possible solution.
they used a 4l65e and the adapters are a flavor of marks, certainly the spud adapter... don't honestly know yet as it sits. he was doing his own adapter to the 4l60 they started with, then they changed midstream to the 65 and it changed EVERYTHING. it was going to be stock tcase in stock position with stock DS. now the tcase is shifted and both DS are new.