Solutions For Porpoising Trailer Pulled With A 2012 Toyota Tundra  

Question:

Helpful Expert Reply:

The Coil SumoSprings Custom Helper Springs for Coil Spring Suspension # CSS-1069F for the 2012 Toyota Tundra may help with the porpoising effect that you are experiencing. However, usually porpoising is caused by the trailer weight not being properly distributed.

If your tongue weight is not between 10-15% of the loaded weight of the trailer then it may be too light in the front. If you are at 10% try to make the tongue weight 15%. Also if you are not already using a weight distribution system such as the Equal-i-zer Weight Distribution System w/ 4-Point Sway Control # EQ37100ET that would be worth consideration as well.

If your tongue weight is 15% and you are still experiencing porpoising the suspension of the truck may be the culprit. For that I recommend the Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers # AL88299 because they are a hybrid spring system that combines the adjustability of air springs with the reliability of jounce-style springs.

Included are video resources with more information on these solutions.

expert reply by: Patrick R

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