Mike,
If you are familiar with the guts of a transaxle, know how to use a dial indicator, can set pre-load on bearings, and have good mechanical knowledge and ability, I don't see why not.I'm sure that the Quaife LSD would come with some form of rudimentary installation instructions to follow.
I didn't trust myself, so I had my Quaife installed, when my gearbox was rebuilt. The cost of an error on my part, was something that I couldn't live with! My wife would have killed me if I blew up the gearbox, immediately after finishing the car! /ubbthreads/images/graemlins/shocked.gif
Bill