Here's the low down with the Fan & Fan shroud installations.
1) I did not use Dustins Fan Hub. I did not have a fan with my engine so I bought the complete assembly (I think it came off a 94). I'll try to find the picture I took comparing Dustins Hub and the OEM Hub I used.
2) I mounted it to the engine and dry fitted the shroud. The shroud barely fit, the fan was the exact same size as the shroud opening. Also upright it wasn't even close to lining up, because the fan sits more towards the driver side.
3) I then mounted the radiator to assist lining up the shroud. I flipped the shroud upside down and it was perfectly lined up!
The only issues was the fact that the opening was the same size as the fan.
Made a mark on the shroud of the radiator air pocket relief inlet? And drilled a hole for the shroud to slide over it.
EDIT: forgot to mention that I ended up using JB Weld and a screw to plug that fitting on the top of the fan shroud (air pocket relief inlet?)
4) marked 1" to be cut along the sides of the shroud. Made the cuts and dry fitted again. To clear the top, I lifted the shroud and to clear the bottom I trimmed about 1/2" from Back to Front of shroud.
I kept playing with it, trimming a little here and there until I was happy with it.
5) on the driver side, there was enough of a lip to drill a hole and use a bolt to secure the side.
6) on the passenger side I had to rivet (actually my buddy showed me how to use the rivet gun, bought the gun for $25) a flat piece of aluminum to extend the shroud so I could drill a hole and secure it.
***note how much room there is to get anything off (tensioner, fan, idler, harmonic balancer).
7) to secure the bottom passenger side I used a flat piece of aluminum to replace plastic bracket. I had to use a nut as a spacer on the right side for the rivet to work properly.
8) the driver side required an angle piece to essentially to the same thing as the passenger side.
I hope that makes sense.
If it doesn't feel free to ask me questions.