Electric fan install help.

I love the setup on my Envoy, it had a mechanical fan for cooling and an electric for the AC, so when one went out you were not stranded. Now I had a BMW 530 at the same time and it had electrics only that went out on the highway and it started overheating even at steady speed, couldn't even drive it. You would not believe how much of that car you have to take apart to get to the fans! My garage looked like a bomb went off and blew the whole front of the car off! Now I know why my Euro mechanic wanted $900 just for labor.