Here are some close ups of the two light bulb bases I modified:
Hot melt glue is my friend.
Beam patter comparison:

On the left a 9007 Sylvania Xtravison with the 12 gauge headlight harness.
On the right a 9004 Wagner Truview with stock headlight harness.
EDIT: 1/30/05
Where to plug in a ready made 9007 harness:

Just remember to swap the stock low beam and ground wires when using this.
EDIT: 7/23/05
This is how I made my harness

No modification to the stock wires is needed. I did not use the diode, so at this time I dont recommend it. I may try it though I dont want to over heat anything. I just included it if any one wants even more light.