When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Hi Rodney,
FIRST post! Welcome!!!
Looking at a 68 NICE!
The transmission code and VIN derivative are stamped on the passenger's side of the main case. It's on the rear flange just where the tail shaft housing bolts to the main case.
The code will tell you the source and date of the transmission and the vin will tell you what car it was installed in. The same stamp was used for the VIN derivative on the engine stamp pad and on the transmission flange so they should look the same.
Good Luck!
Regards,
Alan