I highly recommend purchasing a Haynes manual covering your car's model and year to do this job. The $30 will be money well spent, especially if you do your own work on this car.
Here is a link to purchase the manual for your car on Amazon although you should feel free to do a wider search for it. It may be available locally at auto parts stores like AutoZone, Advance Auto, PepBoys or any other auto parts store.
https://www.amazon.com/General-Chevrolet-Cutlass-Supreme-Pontiac/dp/1563927268/ref=sr_1_1?crid=2PBA8RWNFGV0F&dib=eyJ2IjoiMSJ9.Bum6t06UdpY0jkOwzxWbZ5asqJiegaV1vcQcJwx9EU_1TjHJkVD3fb6DQn1OttuynczAVfjAr7OBcm7rAdLzBNr62ixEFQIbnyTMjmYPpo7bw_2-OpyI4Lr3eQXJ3qaAZDGi6zyz9YpMm9hegET_Jw.tGYf5PI4b6SBODbRedYFSmCskcYU8samua86OH46b5M&dib_tag=se&keywords=haynes+repair+manual+pontiac+gran+prix&qid=1746716807&s=books&sprefix=haynes+repair+manual+pontiac+gran+prix%2Cstripbooks%2C79&sr=1-1