Help required - transfer ratio issues

I did the reverse swap (in a round about way).

i found it was possible to fit a stick t-box into a push-button jimny, so i would assume its possible the other way from a nuts and bolts point of view.
The connector for the speedo is the same, mount points are the same and the props are the same spacing/bolt pattern from memory (spline count on gearbox to t-box prop is different depending on gearbox, but t-box end is the same). Electronics beyond the speedo are totally different and would be a headache to splice into an earlier model however.

I suppose you could try and fit one in to see what it does in 2wd high, I would expect it to be fairly un-driveable due to over gearing. As the others say, its designed to rev high and works best like this. Even my 1.6 vvt sits at 4000 rpm for motorway speeds (deliberately geared that way for 31" tyres)