QA1 Non-Adjustable Upper Trailing Arm - 1965-1967 Buick Gran Sport M135i MONO RACING for your 2007

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QA1 Non-Adjustable Upper Trailing Arm - 1965-1967 Buick Gran Sport M135i MONO RACING for your 2007All Upper Tubular and Lower Boxed Trailing Arms for the 1965 1967 Buick Gran Sport 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. For a long