Adding Airbags or Air Shocks to the Rear for Towing

[JakeEL]

I hitched up my 2015 expedition EL with a 3/2 lift on 35's to a 26' toy hauler last night and the rear sagged about 3-4" which isn't terrible, but it only left like a 1.5-2" gap between the fender and the 35's. I bought sumo springs to see if those help. Has anyone else added some sort of air bag/heavier springs for towing?

 

[1997SCEBFEX]

do you have a load-leveling hitch, or was it to the ball?
Pics?

 

[JakeEL]

I initially tried it with a 1000 lb weight distribution hitch, but I am going to add sumosprings and a 1500 lb weight distribution hitch and see how it looks. I'm hoping to get a little more clearance so I don't nab my fenders with the tire if it gets bumpy.

 

[chuck s]

Heavier springs or air bags just disguise the problem which is solved with a weight distribution hitch. Your rear axle remains severely overloaded with the air bag. "Level towing" is not the goal. Getting off the rear axle is the goal.

How much weight is on the ball? Unless you know that you're just guessing. 15% of trailer weight is recommended (10% for boat trailers).

I assume you have the HD tow package with the Class IV receiver on the back.

-- Chuck