Replacing blower motor?

Blower motor is acting up, growls on high speed. I need to change the blower motor. What steps is there to changing this?

Hi there should only be 3 screws that hold the blower motor in place and a plug on the back side with 2 wires on it, then remove the motor and you will see the cage attached to it in some cases you will have to put the cage of the old motor to the new one but its easy to do and then just repeat the process of putting it back together. Hope this will help.