Anyone here up to speed on 'cruiser technicals?

I looked at a 2002 FJZ105R GXL the other day that had been converted into a dual cab ute with extended tray. Pretty decent job done on it.

Initially I thought it was a 100 series ie 4.7L V8 and A750F 5spd auto. But it was a 4.5L 6cyl petrol and 4spd auto. Solid front axle too, not IFS.

What are these like?