1999 GMC Safari Blower Motor

Hi:
replacing the motor is an involved process. Because of that, I recommend purchasing a repair manual. It will provide step by step instructions and pictures to help identify parts. There is too much room for error for me to explain.

you could check this page out. It may help.

https://www.2carpros.com/articles/mitchell1eautorepair-car-repair-manuals

I hope this helps you.

Joe