But I ran into two different sets of '4 bolts'. There were the four 10mm bolts which I originally tried (and ended up rounding one off). Then I decided to try the four bolts (13mm) holding the fan blade to the viscous clutch. My thinking was that with this assembly out of the way, I could get at the four 10mm bolts better. But I couldn't get this assembly out of the way. So that was the motivation of my original request for help.
By the way, the tools I got at Lowes were Kobalt. Any thoughts on those?
Hey: I appreciate your advice. I've never done this before.