I ran these in my original 10 bolt rear for a few thousand miles. I installed the original 3:42s when I sold the rear.
More info about these gears can be found here by typing in the part number 80-4028-1 on Richmond Gear's Part Number Search.
Pics of this ring and pinion along with my other for sale items can be found here:
http://picasaweb.google.com/camack/GarageSale#
Looking to get $125 shipped.
Chris