This is the factory replacement left trailing axle steering block for the Xray XB8 platform, covering multiple model years of the XB8, XB808, XB8E, and XB9. It is a direct-fit knuckle designed to maintain proper suspension geometry at the rear trailing axle position. Replacing a worn or damaged steering block with the correct left-side part ensures precise handling and consistent tire alignment. Features: Left-side trailing axle steering block Fits multiple Xray XB8 platform generations Direct factory replacement knuckle 7/7/26 cs