Recommended 12,000 lbs Equal-i-zer Weight Distribution Systems with or without a 2" Shank

Updated 10/04/2026 | Published 10/03/2026

Products Featured in This Question

Equal-i-zer Weight Distribution w/ 4-Point Sway Control - No Shank - 12,000 lbs GTW, 1,200 lbs TW

(928)

$825.00

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

(929)

$900.00

Question:

What is the difference between the EQ37120ET and the EQ37121ET? They both have the same weight ratings, but one costs a little bit less.

asked by: Andrew G

Expert Reply:

Welcome back Andrew. The Equal-i-zer Weight Distribution System item # EQ37121ET does not include a 2" shank to attach to your tow vehicle's hitch. The Equal-i-zer item # EQ37120ET does include one. That and the price are the only differences between these two systems.

Both the Equal-i-zer Weight Distribution System item # EQ37121ET and item # EQ37120ET are rated for a 12,000 lbs trailer with up to a 1,200 lbs tongue weight. These systems have built in four point sway control that will keep your trailer in line when you're going down the road and get passed by a semi or make a sudden lane change.

The 2" shank included with the Equal-i-zer item # EQ37120ET system will provide a maximum rise of 7" and a maximum drop of 3". I linked a diagram below of the dimensions.

Please note for both systems you will need room on your trailer's coupler between 27" - 32" back from where the hitch ball mounts. This is for the sway control brackets.

What kind of trailer do you have and what vehicle are you using to pull it? Feel free to answer this and throw in any other questions you have, where it says Add Comment.