Yes the parts will fit. You need the front ring gear and hub assy, the front planet, and the sun gear/shell assy. It's a drop in replacement.
I am sure changing gears in the diff did change your E.T. That changes the RPM throughout the entire range. Changing the gears in the trans changes 1st gear ratio only.


" The last official act of any goverment, is to loot the treasury" George Washington