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I just bought a 2018 Sienna to replace an '08 Uplander for towing my pop up camper. I love the Sienna but wondering if I made a mistake in terms of a minivan towing vehicle. Here's why.

I tried two sets of Firestone air bags on my Uplander which failed. I then got Monroe air shocks which worked great! For the '18 Sienna the ONLY option (other than 5-6k custom air suspension) appears to be blow up air bags for the rear springs: no air shocks, Sumo springs, or other non-inflating spring supports.

Does anyone know of any other affordable non-airbag rear suspension enhancement for the '18 Sienna LE? note, the Timbren system works on the '17 but not the '18.

Any help would be greatly appreciated. Thank you.
 

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Use a complete weight distribution system .The name mini van is irritating.Wit a 6 cylinder 250 hp engine you have no problem of towing up to a limit.AWD is recommended because you will go off road sometimes.
 

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Use a complete weight distribution system .The name mini van is irritating.Wit a 6 cylinder 250 hp engine you have no problem of towing up to a limit.AWD is recommended because you will go off road sometimes.
Thanks for you reply. After much research I figured a weight distribution system is the way to go. If you have any recommendations on which system to use that would be great. Apparently, the friction bar anti-sway/WDS is recommended at e-trailer because there's better ground clearance than the bars that tighten using chains.
 

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Depend of your Camper trailer model,I would go to a TRAILER outfit shop and have it checked from specialists.
Thats what I did and they sold me exactly what I needed and that was in 2006.I never hat a problem since.I am transfering the system now to my newer Sienna AWD XLE 2015....
45737
 

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I just have a little pop-up but the storage box on the front pushes the tongue weight up. It appears you have plenty of ground clearance with you system.
 

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I believe most pop up manufacturers don’t recommend weight distribution hitches. The frames are relatively thin for light weight. Not that you couldn’t do it anyway, I’m just pointing it out.


I have a mid-sized pop up with front storage. With air bags, towing it has never been a problem. I do pay attention to how the load is distributed in the camper. For instance I’ll put the cooler in the center of the camper, accessible by the door, rather than in the front trunk. Depending on the weight of your camper, I’d say it’s more important to have brakes than a weight distribution hitch.




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Discussion Starter #9
Thanks Dave. I've tried air bags on my previous van, professionally installed, and had problems with them getting chewed up by the springs. My preference is for air-shocks which work great. However, other than air bags there doesn't seem to be any suspension enhancement compatible with the 2018 Sienna. That's why I'm looking at weight distribution systems. Carefully loading the camper and van would help but the rear end is still going to sag.
 
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