See Figures 1, 2 and 3
The Transaxle Identification Number is stamped on a boss located on the upper part of the transaxle housing. Every transaxle also carries an assembly part number, which is also required for parts ordering purposes. On the A-412 manual transaxle, it is located on the top of the housing, between the timing window and the differential.
On all other types of manual transaxles, this number is located on a metal tag attached to the front of the transaxle. On automatic models, it is stamped on a pad located just above the oil pan at the rear of the unit.
On the Dodge Monaco and Eagle Premier vehicles, the transaxle identification tag is on the left (driver) side of the case just above the oil pan. These transaxles also the same number located on the upper edge of the bell housing.