Don't buy a 97 they were the bastard child of the Grand Prix's. Get 98+

dpzelnak the trans in the 97 GTP was the same trans that is in every GTP the 4T65-E, the SE and the GT had the 4T60-E, only difference is the 97 has different fittings for the cooler lines and the 97-99.5 have a different valve body and 2003 has some upgraded internals, other than that they are the same trans.