Hays 70-201 Features: Minimizes Noise And Vibration Upgrade From Standard Bearings Heat-Treated Collars Nylon Liner For Cool And Quiet Operation Bearing Retainer For Cool And Quiet Operation Height: 3.00 Width: 4.80 Length: 3.90 Weight: 0.69 lbs Fitment: 1991/Pontiac/Firebird/Trans Am GTA Coupe 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated^^1991/Pontiac/Firebird/Trans Am Coupe 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated^^1991/Pontiac/Firebird/Trans Am Convertible 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated^^1991/Pontiac/Firebird/Formula Coupe 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated^^1991/Pontiac/Firebird/Base Coupe 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated^^1991/Pontiac/Firebird/Base Convertible 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated^^1991/Chevrolet/Camaro...