racecar engineering did an excellent article last year on racing differentials. including the torsen gleeson type. i suggest you contact them and ask for a reprint.
q.editions
racecar engineering
n/a distributor is:
eric waiter & assoc
369 springfield ave
berkley heights
nj 07922
ph (908) 665-7811
fax (908) 665-7814
-dave.
