Is there another way to find the manufacture date? We need it to find a part. The part for the model year (1991) does not fit and the parts store told us to get the manufacture date. Said it may use a part from a different year depending on what month it was manufactured.

Look under the hood, find the emmissions sticker. On the bottom of it, it will say, meets emissions requirements for the model year of. If you cant get that one, write down the VIN number, located in drivers side dash all the way foward, (look threw the windshield) Take it to a dealer, mechanic, or a salvage yard, and they can tell from it.