5th gear available?

[MK1Scirocco16v at comcast.net (Dave Ewing)]

I have a few stupid questions.

1.  Julie, are you converting an AGB trans?  Seems like the step from .91 to
.89 wouldn't be that noticeable but maybe I just suck at estimating this
(probably the later).

2.  Can you use any gears out of a 4 spd for a 5 spd?  Is the 4th gear on
the 4spd setup similar to the 5th gear on the 5 spd?

3.  Is there any difference between shaft sizes when gearing your AGB down
with 8v parts?

Thanks.  I can take them apart and fix what's there but I haven't done much
swapping!

Dave