As far as I can tell--the "new updated radiused" 3/4 slider hubs were
installed in the most 90 & 91 Vans although I just did a 91 that had the
new style starting to crack....not nearly as bad as the old stuff always
does though. Weight of the vehicle and aggressivness of the driving seems
to be a big factor..:)
Daryl of AA Transaxle, Duvall, Wa.
(425) 788-4070
1-877-377-0773 (toll free)
aatransaxle.com (web site)