Front Left Upright and Hub

The front left upright is the billet aluminum knuckle that connects the front suspension control arms to the wheel hub, forming the central pivot point for both steering and suspension movement. This assembly includes the wheel bearing hub, giving you everything needed to restore a complete front corner.

The upright supports adjustable camber, dialed in using shims and ball joint spacers at the A-arm mounting points. Front toe is set separately via tie rod adjustment. It mounts to the upper and lower A-arms via ball joint pins and connects to the tie rod for steering input. The included wheel bearing hub is a sealed unit that bolts directly to the upright face — no preload adjustment required. Replace the hub assembly when you notice play, roughness, or noise in the bearing; annual inspection is recommended as part of the Rush SR maintenance schedule.

This is a side-specific OEM replacement part. Verify left versus right before ordering — the front right upright is sold separately.