2011 Ford F250 F-250, 2012 Ford F250 F-250, 2013 Ford F250 F-250. 2014 Ford F250 F-250, 2015 Ford F250 F-250, 2016 Ford F250 F-250. 2011 Ford F350 F-350, 2012 Ford F350 F-350, 2013 Ford F350 F-350. 2014 Ford F350 F-350, 2015 Ford F350 F-350, 2016 Ford F350 F-350. 2011 Ford F450 F-450, 2012 Ford F450 F-450, 2013 Ford F450 F-450. Rear left and rear right. Up to 5,000 lbs. Grade of the steel. You may need a spacer. The kit will not fit.