My 88' Rockhopper has a Uniglide 6 speed Cassette Serial #GP856668.
Can i also convert to 8-speed?
I have a pair of 7-speed XT index thumbies that are begging me to be used. These have a hidden 8th shift click.
Im not sure this its related to the mods you folks are doing, but i found this on Sheldon's:
http://sheldonbrown.com/k7.html#transplant for transplanting uniglide cogs.