What I know:
Smaller engines (F5A, F5B and F6A instead of F8A and F10A)
Different model codes (DA71T is roughly equivalent to a SK410, except for motor size)
Different Options (4x4 or 2WD, Tipper, Truck or Ute Body, Some had option of Supercharger)
What I'd like to know:
Tare and GVM for JDM models (695 tare, 1410 gross for Aus, Jap = ?)
Compatibility (bolt in compatibility) with 'Australian' motors/gearboxes (Can I buy a 4x4 Import F5A 5 Spd and swap the F5A for an Aussie F10A?)
There are other things, but I'll remember them after I post this...

Cheers,
Lyndon
EDIT : Should mention I'm after the info on the SK410/DA71T Era trucks mainly, as that's the era that is allowed to be imported into Aus, so more likely to be some here or people with info on them... GA413 Jap equiv can't be imported (and the Oz version is almost impossible to buy) and the ST90 shape is prolly a bit old for me to be interested...