Jerking and bouncing in reverse .
I have a 99 F350 DRW that I pull a 40 ft. gooseneck trailer with .
When I am backing up with over 8,000 Ibs. on trailer 28-33,000 gross weight
the truck will jerk and bounce if I slowly back up like in parking in parking place at truckstop .
It was suggested that I check the hanger bearing which don't seem loose to me . It has a little give in the rubber when moved around but nothing I would consider to make this jerking . Truck has 432,000 on it .
anyone else have this problem ?