1jzgte is the better option...lighter, more reliable and more powerful in factory tune. advertise the 7mge in the trading post...depending on wat condition its in its worth between $4-$700. Is it a grande? If so the diff should be fine, auto not too sure...if you bought a 1jzgte 1/2 cut you'd get an auto trany anyway. If its a gli/glxi diff wont last if it cops a caining.