Any of you guys had this problem? Got a 2011 F350 Crew LB. When I'm pulling a mild grade, put my foot in it and down shift at about 60mph, I will get a real good rear-end bounce going on. It sounds real similar to the 45-50mph bounce in that if I slow down or power through it the bounce will go away. If I sit there at around 55-62 it will develop a real good hop (standing wave like). I've never had the 45-50mph bounce problem, BTW.

It just started happening in the past few months. The truck has an Icon leveling kit with bilstien shocks and slightly taller tires. The leveling kit and tires have been on there for a couple of years. Just replaced a leaking rear shock thinking it was the cause, but no happiness.

Any thoughts?

 

It might be dealership time, zonedar. What's the truck's current mileage?

Crystal

 

~33K+. That's what I thought, too. But I thought I'd ask the collective wisdom first to get info to steer them in the right direction.