I used to pull my 3500 lb Bigfoot
17CB with my 2004 Odyssey. I had installed coolers for the transmission and the power steering. I also installed Airlift 1000 airbags in the rear coil springs. They required that the rubber bumpers inside the coils be cut out. This was best done with a soap and water wetted sharp long kitchen knife. These bumpers supposedly prevented the vehicle from bottoming out.
I pulled that trailer many thousands of miles with no problems but now use a 2011 Toyota Sienna, also with Airlift 1000 airbags. Again with no problems.
Airlift 100 airbags from Amazon are less than $100.