amc20 torsen posi

[adh@xxxxxxxxxxxxxxxxx (Sandwich Maker)]

i suppose it's fairly common knowledge here that the hummer [h1] has
amc20 differentials, and also that they carry what is imho the best
posi ever, the gleason torsen.  it does not work through friction and
needs no special lube; instead, worm gears on the carrier drive the
side gears.  it doesn't 'wear out' like conventional posis.

until now, i had thought that because of the axle-hub gear reducers
they used only tall gears on the 2-series case, but according to this
http://www.vibratesoftware.com/html_help/html/HUMMER/Hummer.htm
they also offered 3.08 gears.  this might have a thick ring gear that
goes on a 2-series diff, but it could also mean they have a 3-series
amc20 case too!

jeeps had a 3.07 that went on the 3-series case.  i don't know of any
other 3.07/3.08 for an amc20 2-series, which would make the hummer
gears unique if they are.

btw if this doesn't sound high performance, indycars also run torsen
diffs - exclusively.
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh@xxxxxxxxxxxxxxxxx                       and think what none thought