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Old 01-12-2016, 10:00 PM   #25
kannon
Junior Member
 
Join Date: Oct 2015
Location: south east wisconsin
Posts: 18
Current f350 has c channel frame in box section.Its flexing under heavy loads in box.I witnessed this.Local farmer was parked on side of hill and door gap changed till he parked on level ground.Yes he was overloaded.New box frame rails will be 1.5 inches taller and said to be 24 times stiffer than current model.
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