Gas turbine engine

A method of assembling a gas turbine engine (10) that includes rotatably coupling a first low-pressure turbine rotor (106) to a high-pressure turbine (100), rotatably coupling a second low pressure turbine rotor (108) to the first low-pressure turbine rotor, and rotatably coupling the second low-pressure turbine rotor to a turbine rear-frame (142) such that a weight of the high-pressure turbine is transmitted to the turbine rear-frame.