I have been asked several times how to change the blower motor in later model Chevrolet and GMC Full sized trucks as there are no mounting screws. This includes 2003 through 2007 Classic series trucks. There is a locking tab that has to be pulled down past the stop and then the motor assembly can be rotated and pulled from the blower housing.
Pull the tab down.
Rotate the motor assembly and pull it down and out of the truck.
The locking tab is at 3:00 and the motor electrical connector is at 1:00 in the picture below.
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