It's not a T5, should be a HM290 (5LM60, later called NV3500), 2 piece alluminum case, bell housing part of front case half. Takes 2 qrts of 12345349 synchromesh transmission fluid.
Could also have optional NV4500 (cast iron case, seperate alluminum bell housing), uses 4 qrts 12346190 or castrol syntorq fluid.
