Recommended Coupler Replacement for Custom A-Frame Trailer

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Question:

I am trying to figure out what replacement A-frame coupler I need to replace on my horse trailer. Ive noticed many of the couplers on your site talk about 50-degree. What is the 50-degree describing? Does this create a drop or rise? Im installing on a horse trailer that apprently was homemade or customized. It looks like the coupler that was welded on is pretty straight. I can send a picture if that would help. Are there specific measurements that I could make that would help determine which one is the right fit for my trailer? I have been looking at the Fulton 50-degree A Frame Coupler 5/16 ball low-profile latch Thanks in advance

asked by: David P

1

Helpful Expert Reply:

The A-frame couplers are a standard 50 degrees angle from outside of frame rail to outside of frame rail where they come together to meet the coupler. The Fulton coupler # FE443050303 you mentioned will be a good replacement for most trailers as long as they fit within the 10,000 lb weight capacity. This coupler will give you a standard hole for a trailer jack as well as fits the standard 3 inch on center mounting holes of most jacks.

Couplers like this are not rated for a rise or drop, but the top of the hitch ball will be almost level with the frame that you will weld this coupler onto.

If your custom trailer has a different angle, you will need to do some customized mounting to have a compatible trailer coupler. It is highly likely that the trailer was made to fit an existing standard A-frame coupler.

expert reply by: Jason S

1

Answer 1

I have a complete replacement option for you, but unfortunately we do not have any confirmed replacement parts for the coupler of your Wells Cargo Trailer. Instead I recommend going ahead and replacing the entire coupler with the Fulton 50-Degree…

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Answer 2

Correct! TW stands for tongue weight and WD stands for Weight Distribution. I have a class V hitch for your 1990 F150,F250 or F350. The Curt Class V #C15300 will fit your 1990 Ford. This hitch has a max gross trailer weight of 16,000 lbs and a max…

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Answer 3

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 4

I would use a protractor, see photo, place the protractor on the edge of the inside of one side of the trailer frame and the other inside edge of the trailer frame should be parallel with the 50 degree line on the protractor. Another way to verify…

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Answer 5

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 6

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 7

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

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Answer 8

Trailer wheel bearings are specific to the spindle that is installed on the axle that is on your trailer. You will need to safely support the trailer, remove the wheel and tire, remove the grease cap, remove the cotter pin and washer that secures the…

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Answer 9

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 10

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Answer 11

Generally speaking bearing grease has so little water in it that significant expansion due to freezing temperatures is unlikely. Higher operating temperatures within the hubs while underway would potentially thin the grease but again not cause much…

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Answer 12

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Recommended Coupler Replacement for Custom A-Frame Trailer

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