My wife's Silhoutte van speedo odm & trip od
don't work.The reg speedometer is off aprox.
15-20 mph depending on speed.Is this electric?
I see a wire that runs into the tranny,but no speedo
cable. Any other ideas?

Thanks,
Bryan

Well since I never found any help here,I went over to
the Transport page and at least got a little help.
Anyway here is what I managed to do.
So it would seem that the problem I had with my guages
was with the guages themselves.I ended up buying 2 more sets
from junkyard and still had to use part of the orginal
set to get the guages useful & still lost the rpm guage.
Seems each individual piece such as speedometer and rpm
guage uses a tiny motor to operate.Similiar probs appeared
on the other guage clusters as well. What a pain in the ASS!!