As my other post here states, I have heavy duty Roadmaster front and rear sway bars Installed on my 2007 Ford E350 chassis, PC model 2350.http://phoenixusarv.com/community/index.php?topic=8.0
For all with a 2007 or older Ford E350 chassis, you have a small stock front sway bar, but do not have a rear sway bar of any kind, unless somebody added one after it left the PC factory. Without a good rear sway bar, your PC model 2100, 2350, or 2400 rig likely leans hard in turns and wanders in gusty cross-winds, passing trucks, and uneven road surfaces. Your driving or riding experience can feel like you are on a boat. If you get car sick, this is likely the main reason why. The rig will also sway when walking around inside it when parked.
A low priced heavy duty rear sway bar is available from Helwig. If you are comfortable working with simple mechanic's tools like a socket wrench, you can install this yourself with a friend. It is a 2 to 3 hour project for someone who never did such a thing before. Details (with pictures) of this is being shared on another forum here.http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/23837386.cfm
I installed this bar with my brother on his 1998 E350 Starflyte motor home last weekend. We were both surprised how simple a project it was to install. If you have any questions for me, please ask on this PC forum to keep everything together for other pre-2008 2100, 2350, 2400 PC owners to read.
If your PC is built on a 2008 or newer Ford E350 chassis, then you have a sway bar already. But it is much less effective than the Helwig aftermarket sway bar because it is much weaker. Regardless of year or model E350 or E450, if you have handling issues, you will want to consider upgrading your rear and front sway bars from the weaker Ford bars to the bigger, much thicker heavy duty bars from Helwig.
I had handling issues from the start so I went to a specialty shop to have Roadmaster bars added along with other upgrades to my suspension which makes our rig handle extremely well under all kinds of conditions. Had I known then what I know now, I would have saved a lot of money and install front and rear Helwig sway bars myself.