RE: 4000 turbo rotors/90 hub size

[Brendan Rudack <rudack@umcc.ais.org>]

On Wed, 21 Apr 1999, Bruce Bell wrote:

> Consider this, the CGT has a 68mm WB (39 mm ID)  VS the 80/90 with a 75 mm
> WB (42 mm ID). Also, your axles use a nut for the hub rather than the bolt
> as used on the 80/90.

Not entirely accurate.  THe front wheel bearings on the 80/90 have the
following spec.:
 
OD:  75mm
ID:  41mm/39mm  There are 2 ID's, the inner race is split.  The hub has
     the same "split-dimension" features.

Also, not only is the axle different (bolt vs. nut) but the splines are
radically different.  Shoot, the splines on front of the 90Q and the
splines on the Coupe Q front axle are different as well as the ABS rings
on each axle (difference from press in ABS sensors to bolt in ABS sensors
I believe).

 HTH

Brendan Rudack 
'98 A4tq 
'88 90q 2B tq pro-rally ride
'85 4kq
Fenton, Michigan
USA