I just caught that it’s a 2017. Why change them out?
Hi Joseph,
The shocks that come with the chassis from Ford are not effective because the chassis is loaded up to, or close to the max load rating. Placing a house, appliances, people, water, and their contents, all combined is equivalent to a box truck loaded up. The problem is made worse when the RV manufacture increases the wheel base and the worst is extending the frame behind the rear axle.
Apparently, Ford's shocks consider an empty or partially loaded box truck. They are under-rated for the full load of a motor home. That is why it is so popular to install after-market heavy duty shocks. Understand that the shocks Ford installs are the same shock they install on an E250 van. That alone is a strong indicator that the shocks are inferior for a motor home application.
Not every RV owner feels the same. It could be they might not realize their shocks are inferior, or possibly the weight is well distributed on their motor home. Some people simply get used to the way their motor home handles. Some people don't travel far to their camping destinations so they don't see the value in the investment. They would understand if they could drive identical motor homes loaded up, one upgraded, side by side, on a road that needs to be resurfaced and experiencing gusty side winds, driving across the USA. That would be a typical condition for some of us.
Not just the shock aborbers, inferiority continues with the front and rear stabilizer bars, and the steering stabilizer. Replacing all with heavy duty equivalents, in combination help make the chassis handle much better. I feel you need to upgrade all of them to notice a significant improvement.
As you say, load distribution, the right tire pressure, and also the right wheel alignment, further improves the handling.