These GPM SB054 front upper suspension arms are CNC machined to exacting tolerances to stiffen the front knuckle mounting points and reduce chassis flex. The component geometry is optimised for consistent alignment and predictable steering feedback under load.
Manufactured from aluminium 6061 T6, the arms provide a high strength to weight ratio suitable for performance upgrades. Delrin collars are incorporated to reduce assembly tolerance and ensure a tight fit, while stainless steel balls with rings and matching screws deliver corrosion resistance and mechanical integrity. The threaded screw locking system secures the stainless balls to prevent loosening during hard use, and the anodised finish protects surfaces while offering a clean, serviceable appearance.