Weight Distribution/Anti-Sway Setup for Tri-Toon Boat Trailer with Pole Tongue and Surge Coupler

Updated 06/11/2018 | Published 06/07/2018

Products Featured in This Question

Equal-i-zer Weight Distribution System w/ 4-Point Sway Control - 12,000 lbs GTW, 1,200 lbs TW

(840)

$863.10

Pole-Tongue Adapter for Equal-i-zer Weight Distribution Systems - 14,000 lbs GTW, 1,400 lbs TW

(70)

$145.25

Question:

I have a 2015 Harris Grand Mariner 250 Tri-Toon using the Bear PB 13-25TTL-B Trailer. I am very interested in getting an anti-sway and possible weight distribution solution, however, it seems that they all connect to the Ainch frame section of the boat trailer. My trailer, click the link below to see trailer and tongue has the extended tongue. Can you recommend the best solution for me to order so that I can help prevent my boat from swaying from side to side each time I pass a big rig or even change lanes? The vehicle I am towing the boat with is a 2015 Yukon Denali XL with the tow package. The ball is a 2inch ball. Thank you

asked by: Richard G

Expert Reply:

Boat trailers tend to be light in the tongue (and heavy at the rear) and this can lead to more sway than with trailers that have a tongue weight in the ideal 12-14% range. Since your boat trailer has a pole tongue it will be necessary to add a pole tongue adapter like one of those shown on the linked page; these provide a mounting point for the weight distribution system's spring bar brackets.

The key to picking out a WD system is knowing the total fully-loaded tongue weight (TW) of the towing system; this includes the actual measured TW of the loaded trailer, which can be measured easily with scale # e99044, plus the weight of any cargo in the Yukon XL that sits behind the rear axle. You will want to choose a system such that this total TW falls near the middle of the operating range. The linked video will help illustrate.

If you should have a total TW of around 1000-lbs then the Equal-I-zer system # EQ37120ET along with pole tongue adapter # EQ95-01-5950 would work well since this system works for a TW range of 800 to 1200-lbs and it is compatible with your surge coupler.

You'll want to confirm with the trailer maker that this particular model can safely be used with WD/SC setups; some trailer frames may not be sturdy enough to handle the stresses.

expert reply by: Adam R