BorgWarner s463 part number 169012, it was a 63/74 with a t6 hot housing.
no shaft play at all, turbo spins better then new! Twin Hydrodynamic Journal Bearings
i converted it to a 75/74 twin scroll with a 1.10ar T4 hot housing (housing number 177104)
they do make a twin scroll T4 .90a/r hot...