Comparing Trunnion Vs. Round Spring Bars for Weight Distribution Systems
Updated 06/14/2021 | Published 06/11/2021 >
Products Featured in This Question
Question:
I currently have an EAZ-Lift Trekker hitch that comes with tapered distribution bars like a leaf spring. It also acts like a leaf spring storing and releasing energy from whoops in the road. Would the square bar format on this hitch help relieve some of that bounce by dampening it with its non tapered profile? I’ve used my Trekker on both a 2500 and 1500 with the bounce apparent on both. Thanks!
asked by: Jay
Expert Reply:
There are two different types of spring bars for weight distribution systems, round like part # FA94-00-1033 and trunnion like part # EQ37121ET. The trunnion spring bars start out square and taper down. The round spring bars are round from start to finish. The main difference between them is ground clearance. The trunnion spring bars provide more ground clearance than the round spring bars. I am not aware of any significant differences in performance.

Continue Researching
- Search Results: sway control trailer hitch ball mount
- Shop: Equal-i-zer Weight Dist Shank - 2-1/2" Hitch - 8" Rise, 4" Drop
- Shop: Equal-i-zer Weight Distribution w/ 4-Point Sway Control - No Shank - 12,000 lbs GTW, 1,200 lbs TW
- Video: A Closer Look at the Equal-i-zer Weight Distribution w/ 4-Point Sway Control
- Video: Equal-i-zer Weight Distribution w/ 4-Point Sway Control Feature Review
- Shop: Curt TruTrack Weight Distribution System w/ Sway Control - Trunnion - 15,000 lbs GTW, 1,500 lbs TW
- Shop: Shocker Hitch Air 2-Ball Mount w/ Sway Control Tabs - 2-1/2" Hitch - 3-1/2" Drop - 12K
- Search Results: curt sway control
- Search Results: anti~sway bars
- Video: Curt TruTrack Weight Distribution System Install - 2021 K-Z Connect Travel Trailer
- Video: Checking Out the Curt TruTrack Weight Distribution System w/ Sway Control
- Shop: Trailer Hitch
- Search Results: weight distribution hitch
- Shop: Reese Pro Round Bar Weight Distribution w/ Sway Control - 11,500 lbs GTW, 1,150 lbs TW
- Video: All About the Reese Friction Sway Control Kit
- Search Results: trailer hitch
- Shop: Equal-i-zer Weight Distribution System w/ 4-Point Sway Control - 14,000 lbs GTW, 1,400 lbs TW
- Shop: Suspension Enhancement
- Shop: Reese Pro Round Bar Weight Distribution w/ Sway Control - 6,000 lbs GTW, 600 lbs TW
- Shop: Brake Controller
- Shop: Trailer Wiring
- Search Results: sway control
- Shop: Towing Mirrors
- Search Results: trailer hitch ball mount
- Article: How to Measure for Trailer Hitch Drop
- Q&A: Overall Height of the 2-5/16" Hitch Ball # C40085
- Q&A: Comparing Equal-i-zer and Curt TruTrack Weight Distribution Systems
- Article: 2 Steps for Finding the Right Weight Distribution Hitch Size
- Q&A: Best Equal-i-zer Weight Distribution Hitch for 1,150 lb Tongue Weight and 2-1/2 Inch Hitch
- Q&A: Recommended Equal-I-Zer Weight Distribution System For Loaded Trailer Weighing About 9,000 Lbs