[trz1000]

The reason I asked if you pulled the distributor was if you had I was wondering what the drive gear looked like and also to see if you were sure it was meshed with the cam after re-installation.

Can you spin the rotor by hand? You should be able to move it a bit as the mechanical advance stretches but it should not spin freely. Don't force it if you can't move it.

How was the truck running last time you had spark?
What happened, if anything, that resulted in no spark?
Have you checked for 12v at the coil? There is a resistor between the starter and the coil, maybe it broke or the wire has a break.
Are any fuses blown?
And as already mentioned, is the battery up to snuff with good clean cables and such?

I feel your pain, ignition problems can be tedious.