Trailer Jack Weight Capacities for Lifting and Holding Weight

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Question:

If I install two 2000lb jacks on my trailer can I expect 4000lb of lift? Thank you

asked by: Warren

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Expert Reply:

A trailer tongue jack like Pro Series # PSEA20000103 has a rated lift capacity of 2000-lbs. Two of them would have twice the capacity but this type of jack is typically used singly on an A-Frame trailer. Other types of jacks like a 5th wheel dual-jack landing gear kit # BD500162 consists of two separate but interconnected jacks each able to lift 4000-lbs which gives this kit its overall 8K rating.

In comparison a stabilizer scissor jack like # UF48-979002 will have a much higher weight rating (13K for the two) since these jack do not lift that much weight; they simply support/stabilize it to keep a trailer steady.

Other jacks like Bulldog 2-Speed Jack # BD183816 will have two ratings, one for lifting and one for holding. This jack has a lift rating of 10,000-lbs and a holding (static) capacity of 12,000-lbs. For more information on jacks please refer to the linked article.

expert reply by: Adam R

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Answer 1

The rule of thumb for estimating a tongue weight is 10-15 percent of trailer weight. A 4,600 pound trailer would have a tongue weight between 460 and 690 pounds. Somewhere between a 1,000 to 2,000 pound capacity jack would be fine. Having a jack that…

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Answer 2

The support capacity is how much a jack can hold whereas the lift capacity is how much a jack can lift. The Bulldog Square Jack w/ Footplate part #BD190754 has a 8,000 lb support and 5,000 lb lift capacity. If you will be using the jacks to lift and…

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Answer 3

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 4

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 5

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 6

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 7

Hey Brandon, I would strongly recommend sticking with the Tekonsha RF brake controller part #TK94FR. We know this works really well and it sounds like it worked well for you too. The Curt Echo is not reliable enough for me to really ever recommend it…

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Answer 8

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Answer 9

Hey Katja, the Curt Echo Mobile brake controller part #C51180 would be your best option. This is a wireless brake controller and all it requires is a 7-way with the taillight functions and the 12 volt accessory circuit active and you'd be set. So…

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Answer 10

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 11

Hey Ron, congratulations on the new trailer! I have a Jay Feather myself and love it. You're definitely off to a great start with a weight distribution hitch, it will make a world of difference towing that trailer with your F-150. The Weigh Safe…

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Answer 12

It sounds like you may already have a 4 way connector on your vehicle, which is half of the battle. In order to operate the Curt Echo Mobile Wireless Brake Controller #C51180 you will need an almost fully functional 7 way connector; using something…

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Trailer Jack Weight Capacities for Lifting and Holding Weight

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