How To Prevent Suspension Sag On 2019 Nissan Armada W/ Auto Leveling Suspension When Towing

Question:

I have a 2019 Nissan Armada, with an auto leveling system in it. When towing and hauling my 3 kids, plus 2 large dogs, the truck is sagging too much. In the description it states that these bags wont work with an auto leveling system. Wondered why not, as it wouldnt interefere with the shocks? I bought similar air bags for my previous SUV Toyota Sequoia and they worked great. I also dont want to void my warranty by intalling these. Any advice would be great.

asked by: Derek G

Expert Reply:

I have another option for you, but the Firestone Coil-Rite # F4150 you were looking at are not compatible with the Auto Leveling shocks on your 2019 Nissan Armada. Using the two together causes issues when the factory shocks try to level your Armada.

The only option to prevent sag is going to be using a weight distribution hitch, as there is no other rear suspension enhancement options for your vehicle.

What a weight distribution hitch does is distributes the weight of the trailer from just the rear axle of your vehicle to all axles of the trailer and vehicle which prevents sag. To determine which weight distribution hitch is going to be correct for you will need to determine your total tongue weight. Total tongue weight is the tongue weight of your fully loaded and ready to tow trailer plus the weight of any cargo behind the rear axle of your Armada.

The easiest way to get an accurate tongue weight rating is with a tongue weight scale like the # e99044 but there are other methods outlined in the included help article.

One thing to keep in mind is it can be tricky to properly setup a weight distribution hitch with the auto leveling suspension, so I recommend reaching out to your local Nissan dealer to see how you can temporarily disable the system when towing.

If you find that your total tongue weight is between 600-1000lbs then I recommend the Fastway e2 Weight Distribution w/ 2-Point Sway Control - Trunnion - 10,000 lbs GTW, 1,000 lbs TW # FA92-00-1000. I like the Fastway systems because they are very high quality for the price, and the two point sway control does a great job of preventing your trailer from swaying when going down the road.

This system does not include a hitch ball so you will need 2" hitch ball # A-90 or 2-5/16" hitch ball # 19286.

If you find you have a different total tongue weight just let me know.

I included videos of the products mentioned for you to take a look at.