Hi all,

I'm in the middle of removing my dash to fix the heater blower fan
bearings, and a few other things long as I'm in there.  On page 70.5 of
my Bentley manual (for my '87 Westy), the instructions say that, in
order to get the steering column out, I need to drill out the shear
bolts that attach it just below the ignition switch.

My questions:
1. What are shear bolts?
2. If I drill these out, what do I replace them with and where do I get
them?
3. What is the recommended procedure for doing this?  Any particular
size constraints on the drill bit?
4. Are they like rivets where you use a small bit to drill out the
center then the rest just comes apart?
5. Is there a special tool that is required to re-install these shear
bolts?

Think I'll go install the speakers in the front doors while I await word
from you all.  I'd hate to think of drilling those shear bolts out just
to find that I'd need to take the van somewhere to get them replaced . .
.  :^)

Thanks all,
Marc Perdue