Fitment Guide: FORD ---F-150 2004-2020 (4x4) Installation Notes: These blocks measure 4", but actual lift height will vary based on size of factory block removed. 04-08 4wd models hava a 2" stock block, so these will provide 2" of net lift if stock block is removed. 09-20 4wd models have a 1.5" stock block, so these will provide 2.5" of net lift if stock block is removed. Longer rear shocks are required. Specifications: ---Includes 2 high-strength 4" lift blocks ---Includes 4 extended u-bolts (12.5") ---Includes new heavy-duty nuts & washers ---Built in bump-stop plates ---Dual pin mount design to maintain stability ---1 piece steel design to ensure durability.
