Very impressed with quality of dampener itself, but sadly no instructions. Was called by Rev rides, advised that something may have to be modified to fit, but I personally installed it and found no issues. Only downside is that you loose full turning motions especially to the left. Adjusted to the max amount of turning and found stress in the board plate. Definitely happy with the safety factor, fit and finish is worth the money, upon opening the package found hardware bag torn at the bottom seam, and the shipping receipt had places for checking the shipment but nothing was checked? Rev rides was courteous to call. Just expected better quality inspections. Overall 4/5 stars but still good, ty rev rides!!!