Scott'
Hal Copple recently changed his.Believe he has around 450hp.
He road races,drags and cruises his,lots.
"OK, here is the Torsen site,
http://www.torsen.com/
If you want to read engineering papers about the technology and theory of this diff, you can go to Yahoo, search for Torsen, and get several nice papers describing the whole principle of the Torsen.
It costs a little more than the other hi end diff's out there, around $500 or so.
__________________
Hal Copple
Stroked SPF
"Daily Driver"
IV Corps 71-72, Gulf War"