90a =>110a alternator conversion hiccups

[Ken Keith]

I ran into one or two problems while trying to install a 110a 
alternator, converted to 150a, into my '88 5kcstq.

One, I couldn't get the heat shield/air duct to go on the back.  The 
threads on the back don't stick out far enough to get both the 
shield and nuts on.  I assume this is not something I should leave 
out, here in sunny AZ especially.  Maybe the rebuilder used shorter 
assembly screws, or there's a different, thinner, heat sheild/duct?

The other problem, even bigger, is that the pulley on the alternator 
seems to be too far forward in the car, relative to the crank pulley.  
I'm thinking I should be using a different pulley.

I already have the bracket, and that installed without a hitch, 
relatively speaking.

Has anyone else done this conversion that could offer me any info?

Also, I printed a post I got from the q-list, titled something like "90a 
=> 110a conversion", which detailed the procedure and differences. 
 I tried to search for this article again, but couldn't find it this time.  
If anyone has success finding it, please point me in the right 
direction.

It's now time for a smog and registration renewal, so I gotta get this 
thing rolling again soon.

Thanks,

Ken