Basically all A4LDs are pretty much the same, but that does not mean all parts interchange. Main differences are that the bigger the motor, the more clutches there are and the more heavy duty the planets became. Also, later units used beefier planets than earlier units.
If you have one from a smaller motor, you can beef it up with parts from one from behind a larger motor. There are some quirks, though, that one must be aware of to get the correct parts that will work as not all parts from one will necessarily fit into the other without major hair pulling.
If you have one from a smaller motor, you can beef it up with parts from one from behind a larger motor. There are some quirks, though, that one must be aware of to get the correct parts that will work as not all parts from one will necessarily fit into the other without major hair pulling.