My 2001 Excursion with the V10/E4OD is in the shop right now being rebuilt. With only 84,000 miles the shop owner said that he wouldn't have expected so much wear. He showed me the pieces of parts that had come apart and said that he was surprised to see that Ford still put the aluminum planetaries in the Excursion. He told me that the trucks had steel planetaries in them. Built on the same frame and weighing more than the trucks, I'm surprised too. I had this same thing happen to my 90 F-150 with the E4OD. Also my Excursion was one of eight Ford trucks in his shop for similar reasons with the E4OD. It is being rebuilt with all steel planetaries, conversion kit, better torque converter, and whatever else.