X-Factor 4 Link Upgrade 2011-2016 F-250/F-350/F-450 Rock Krawler Electrical & Ignitions - Switches & Relays & Sensors Even the rear cover is

Even the rear cover is aluminum so you lose that black plastic on your polished alternator

hitting baffles or tank wall

and the perfect balance of smooth highway comfort and rugged off-road control

but upon acceleration

Uses key to rotate lock in place- PLEASE NOTE- Sufficient hand clearance needed to rotate key

X-Factor 4 Link Upgrade 2011-2016 F-250/F-350/F-450 Rock Krawler Electrical & Ignitions - Switches & Relays & Sensors Even the rear cover isRK Suspension Super Duty 4 Link Upgrade is by far the strongest 4 link upgrade on the market for your F250 F350 or F450! The control arms are made from 2 inch solid alloy steel with 1 4 inch thick laser cut steel and boxed 4 link mounting forks. They have 1. 25 inch shank Pro X Krawler Joints allowing for axle positioning and caster adjustment. The 4 Link Upgrade provides smoother on road ride than radius arms, provides more positive axle control than