Need to know trans type aan or van?
vin is Y. on 2001 Cadillac Seville SLS

This car had 2 types of transmissions with a VIN of 'y',
EITHER AAN OR VAN. Where can I find this information so that I
purchase the correct transmission. The transmission is in the car.

Asked by for the 2001 Cadillac Seville SLS
The parts department of a Cadillac dealer should be able to tell you if you give them the complete VIN number.