What is the Difference Between Trunnion and Round Bar Weight Distribution Systems

Question

Question:

can you please explain the benefits of trunnion vs round

asked by: Donny

1

Helpful Expert Reply:

The round or trunnion bars refers to the end of the spring bars. Round bars are typically designed for lighter applications, are a bit harder to install and are usually priced lower than trunnion bars. Trunnion bars are typically designed to be used with heavier weight applications, and easier to install than round bars.

Trunnion bars typically offer more ground clearance as well.

I attached an FAQ article on weight distribution for you to check out.

expert reply by: Jameson C

1

Duane Y.

2/23/2020

I currently have a Fastway E2 set up, can I purchase just the hitch mount, bar mount and bars separately. And what would those items cost.

Reply

Chris R.

2/24/2020

You can definitely purchase individual components from the Fastway E2 System. For this 8,000 pound setup we have the Spring Bar # FA92-02-0899, Shank # FA92-02-4100, and Head # FA92-02-1255 all available separately. Pricing will be located on the product pages but you really might be better off just going with a whole new system, as it's going to end up right at, if not over, the full price.

Helpful Links

Accessories-and-Parts/Fastway/FA92-02-0899.html

Accessories-and-Parts/Fastway/FA92-02-1255.html

Accessories-and-Parts/Fastway/FA92-02-4100.html

Reply

Fannie

8/20/2024

Hi Jameson, I have a 2024 Jayco Jay feather 380 QDS. I have the Trailer Life Trunnion Sway Control hitch 1000lb Tongue and 10000lb max trailer weight sway bars. My question is can and or should I back up with my sway bars attached? Blessings, Fannie

Reply

Jameson C.

8/20/2024

@Fannie Only if you are basically only going to back up in a straight line. If you are going to turn sharply the bars would need to come off.

Reply

Thank Y.

8/20/2024

@JamesonC Thanks so much.

Reply

Jameson C.

8/20/2024

@ThankY No prob!

Reply

Answer 1

It is possible to upgrade your Fastway e2 Round bar weight distribution system by using higher rated spring bars. I assume you have the 600 lb system, part #FA92-00-0600, so you can upgrade to a 800 lb tongue weight or 1,000 lb tongue weight system.…

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Answer 2

The Equil-i-zer Weight Distribution with 4-Point Sway Control, like #EQ37041ET, differs from the Fastway e2 Weight Distribution with 2-Point Sway Control #FA92-00-0450, because it does utilize 2 more points of steel-on-steel friction at the head of…

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Answer 3

For what you have the Curt shank part #C17123 is going to be your best option. It can do a drop of up to 8-1/4 inches and has a 10 hole adjustment range. To determine the rise/drop you'd need you'd need to measure your coupler from bottom lip…

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Answer 4

The difference between the two systems is basically the attachment point. One is not better than the other except that the trunnion bars are a little easier to install than the round bars that require a clip to hold them into the head. For the round…

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Answer 5

Between round bar systems like #FA94-00-0600 and trunnion systems like #FA92-00-0600, I recommend going with a trunnion system because it will provide you better ground clearance than the round bar system. The trunnion bars come straight out from the…

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Answer 6

Hey Michael! The differences between engines on the 2019 Toyota Tacoma does not impact hitch fitment. The only thing that plays a role is if you have the factory hitch. All of the aftermarket hitches are designed for the Tacoma without a factory…

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Answer 7

Sounds like you are in need of a weight distribution shank that will provide you with 4 inches of additional drop from what you have. A great solution for that is the Curt weight distribution shank part #C17123 which will give you the amount of drop…

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Answer 8

Thanks for the pictures! A weight distribution hitch is recommended based off of the tongue weight of your trailer and is typically between 10% and 15% of your trailer's total weight. 580 lbs seems extremely low for a 7,600 lbs trailer. Usually…

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Answer 9

Yes, you can get a replacement shank only for a Fastway e2 weight distribution hitch, and there are different options depending on how much rise or drop you need. - Max 7-3/4" Rise, 3-1/4" Drop: Fastway e2 Weight Distribution Shank…

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Answer 10

The SumoSprings Solo Custom Helper Springs part #SS45FR do a great job of absorbing road shock like bouncing and bumps. They could fight the Roadmaster Active Suspension though so I recommend using the lowest setting (thin spacer) on the RAS to start…

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Answer 11

Yes you can use the RoadActive Suspension Custom Leaf Spring Enhancement Kit #RAS3611-YHD in conjunction with your SumoSprings, however the two may counter each other, so it is recommended to use the lowest setting on the RAS to correct this.…

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Answer 12

Most of the 2-5/16 inch hitch balls will use either a 1-inch diameter shank or 1-1/4 inch diameter shank. The nut size on a hitch ball with a 1-1/4 inch shank, like the Tow Ready 2-5/16 Inch Hitch Ball, part #19286, will use a 1-7/8 inch socket. A…

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What is the Difference Between Trunnion and Round Bar Weight Distribution Systems

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