QA1 Adjustable Upper Trailing Arms - 1973-1981 Oldsmobile Cutlass Supreme TT RS Part Number W63225 Part Name

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QA1 Adjustable Upper Trailing Arms - 1973-1981 Oldsmobile Cutlass Supreme TT RS Part Number W63225 Part NameAll Upper Tubular and Lower Boxed Trailing Arms for the 1973 1981 Oldsmobile Cutlass Supreme use polyurethane bushings on both ends, while upper adjustable and lower tubular Trailing Arms use a spherical ball or rod end assembly on the chassis end to eliminate bushing bind, allowing the suspension to move smoother for better control. This keeps the tires planted firmly on the ground for improved traction and a more predictable, better handling car.