How do you change ac compressor on a 1996 olds 88?

To change the AC compressor on a 1996 Oldsmobile 88, first disconnect the negative battery cable and recover the refrigerant using a recovery machine. Then, remove the serpentine belt and disconnect the electrical connectors and refrigerant lines from the compressor. Unbolt the compressor from the mounting bracket, replace it with the new unit, and reassemble everything in reverse order. Finally, recharge the AC system with the appropriate refrigerant and check for proper operation.