It is also better (IMO) to keep each bag on it's own fill valve. In a turn, with left/right bag air lines connected, the air will work against you, it will flow from outside (higher pressure/forces) to the inside, increasing the leaning in the corner.

 

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I've done that also, works great just had to buy additional hose kit.

 

OK BigBlue13. The anti-sway (stabilizer) bars are a good idea and Hellwig is a reputable brand. I have the OEM ones (1-1/16" thick) and they work fine. I've read on FTE that some of the OEM ones can be thinner. My truck also has the factory installed "camper package" which gives me 1 rear upper overload (helper) spring. They rarely engage unless I am really loaded.

I didn't like the sway & sag when my truck camper (about 3,500 lbs.) was loaded and after researching my options, I decided I didn't want air bags (too expensive to be used only occasionally and didn't want to fuss with air lines). I installed SuperSprings on my truck (similar to Timbrens). I'm very happy with their cost and performance. Sway is minimal and they reduced my rear end sag from 3.5 inches to less than half that. Unloaded they have no affect (they don't engage until a good load is in the bed).

I left the original shocks on as it's my understanding that HD shocks only assist with dampening .... not much with sway or sag. When I replace them, I will go with the Bilstein 4500's (non-adjustable). I've always had good luck with Bilts. Air bags can be pumped up to provide a level, firmer ride. I recommend you read up on them. Many love them ... a fair number not so much.

Here's a write-up I posted a while back. My summary is post #29.

https://www.ford-trucks.com/forums/1...l#post16587692

Hope it helps. ~ BugJr ~

 

The fox shocks make an improvement in every way on a superduty. Smoother ride when empty and more controlled while towing. They seem to have a softer compression damping which smooths out the sharp bumps. They are very fade resistant during extended off roading. I buy and sell trucks so much I don't really know how well they hold up in the long run though. I haven't been able to get more than a year out of a rancho or pro comp shock before they leak! They always warranty them but that's not the point.

 

If you decide on Air Bags, I suggest you at least look into Hellwig Big Wig Bags. There design and quality seems better than the Air Lift and Firestone Bags Ive had in the past. Upper Stable Loads and Leaf Spring Overloads are brutal on your empty ride. You might consider Timbrens or Air bags.

 

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