How do you replace trane furnace blower motor?

This varies a lot depending on the year of the truck.I am sorry I can't correctly answer your question

located under the plastic cover under the right side of the dash near the glove box.... located under the plastic cover under the right side of the dash near the glove box....

For a 1994 Deville it is at the back of the engine. Difficult to get at. Must remove the cross bar and air horn, move the wireing adjacent to the motor. Expect to take 2-3 hours.

if im not mistaken the blower is mounted under the dash on the passenger side and is held in by three screws. Remove the mounting screws plus the hose and electrical connector and it should drop...

If you mean the resistor that gives you different speeds it is very easy remove the glove box screws (2) at the bottom of the glove box and remove it The resistor is right in front of you