Actually somewhere in this site I have drawings of how to do it!
I'll go see if I can find them.
EDIT: Found a pic of it here.
http://www.iceinspace.com.au/forum/a...achmentid=1181
Still looking for the drawing.
Found it! Here:
http://www.iceinspace.com.au/forum/a...achmentid=1187
This is the accompanying write up with the pic:
All you need are 2 more of the bolts used at the bottom and chuck the big ones. Put the new ones in the top.
Make sure the plastic spacers step down as they come out. Place a washer on the outer end on the bottom spacer so the spring won't fall off. I placed a diagram in here somewhere a long time ago but now I can't find it so I have done another one:
EDIT: If you are one of those people in the habit of only using one spring you will not have to purchase any new bolts. Just use the bottom one from the side you dont use.
Hope that helps!!