The receiver-drier should be replaced whenever the compressor is replaced. First, take the vehicle to a dealer service department or automotive air conditioning shop and have the air conditioning system discharged and the refrigerant recovered. Then, remove the drivebelt. Raise the front of the vehicle and secure it on jackstands. Remove the engine splash shield. For V6 models, detach the electrical connector and disconnect the refrigerant lines, then unbolt the compressor. If a new or rebuilt compressor is being installed, follow the directions supplied with the compressor regarding the proper level of oil prior to installation. For V8 models, detach the electrical connector and disconnect the refrigerant lines. Unbolt the compressor. There are two mounting bolts located on the upper section and a bolt and nut bracket on the lower section of the compressor. If a new or rebuilt compressor is being installed, follow the directions supplied with the compressor regarding the proper level of oil prior to installation. For all models, installation is the reverse of removal. Replace any O-rings with new ones specifically made for the type of refrigerant in your system and lubricate them with refrigerant oil, also designed specifically for your system(R-134a). Finally, have the system evacuated, recharge and leak tested by the shop that discharged it.