God damn... so jealous. 
Speaking of 'yota axles, what's the difference in strength between PU axles and the Landcruiser axles? How much stronger are PU axles than stock sidekick stuff?
Hum, let me see;
I think that Toyota pick-em-up trucks ~3000
Pretty sure that Toyota 4-runners ~4000 lbs
I'm positive that FJ80s are ~4600 lbs
Our trucklet is currently about 3500 lbs
Stock Sidekick is 26 splines.
Stock FJ80 is 30 splines.
As for actual torsion-al strength numbers. That might take some digging up to find out.
~Nate