OER Parts offers a wide selection of Floor Insulation and Sound Deadeners for your 1973 Oldsmobile 98. OER Parts offers 1973 Oldsmobile 98 Acousti Shield Insulation, 1973 Oldsmobile 98 HushMat Insulation, 1973 Oldsmobile 98 Dynamat Xtreme Interior Insulation, 1973 Oldsmobile 98 Quiet Ride Insulators, 1973 Oldsmobile 98 Thermo-Tec, 1973 Oldsmobile 98 Thermo-Guard FR, 1973 Oldsmobile 98 Retainer Clips, 1973 Oldsmobile 98 LizardSkin Sound Control, and 1973 Oldsmobile 98 LizardSkin Sound Control & Ceramic Insulation Kit.