These two are the factory auto trans that came behind my 1jz gte vvti when i did the swap into my 1st gen runner. From wiki says the LS contains mild internal upgrades for the 1j and 2j motors. Outside casing is very similar from what i can see. I would consider trying to mate the two together to make this a 4wd trans but for starters the ecu on the 1j im putting in is for a M/T. I would half to buy an auto ecu but even with that im not sure there is a gurantee i could get it to work.