Best Option for Reducing Suspension Sag of 2015 Toyota Highlander Towing Trailer

Updated 03/30/2020 | Published 03/29/2020

Products Featured in This Question

Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"

(1021)

$268.77

2-5/16" Hitch Ball - 1-1/4" Diameter x 2-3/4" Long Shank - Chrome - 12,000 lbs

(2621)

$24.09

2" Hitch Ball - 1-1/4" Diameter x 2-5/8" Long Shank - Chrome - 10,000

(3870)

$21.42

Question:

Why! Can anyone answer why no one offers an air bag system. You can get Sumo Springs, stiffer shocks, and so on, but no air bags. My questions are why not and are there Amy out there that work? And not just work but work well. My problem is we tows small trailer and are within the load limits of Toyota. However, I do not want a raised car all the time, nor do I want a stiffer ride from the other offerings available out there. I have read of people using the systems that are for the Siena van. Another obvious question is why the van and not the SUV? I have looked and looked for answers to the Dr questions to no avail. I really was surprised at the Highlanders towing ability, but I believe towing level is important. Thank you.

asked by: Joseph S

Expert Reply:

It's harder to do air spring suspension enhancement kits on vehicles with rear coils like your 2015 Toyota Highlander. Especially if there is limited room to work with and the vehicle is a common tow vehicle like yours.

I have a better solution though that I would recommend over air springs even if they were available with a weight distribution system. A WD system reduces the suspension sag at the rear of the vehicle by distributing some of the vehicle tongue weight to the front axle of the vehicle which in doing so improves handling, braking and overall safety. It also would help reduce sway too unlike an air suspension kit.

So based on the towing capacity of your 2015 Toyota Highlander the best weight distribution system is the Strait Line part # RP66082 which has a tongue weight range of between 200-600 lbs and features the only and best sway control that works to fight sway before it starts.

For a 2 inch ball you would want part # A-90 and for a 2-5/16 inch ball # 19286.

expert reply by: Jameson C