Powered A-Frame Jack Recommendation for Replacing Broken Shelby Square Jack

Question

Question:

My 2003 20foot Carson funrunner 5000# has a replacement hand crank jack that just stripped its gears. It has the opening and 3 threaded holes for an electric jack. What is my best option? I take it out on the sand so it gets beaten by the elements. Its uncovered at home too. Thanks

asked by: Ed C

1

Helpful Expert Reply:

If you remove the broken Shelby jack you have currently you can replace it with a powered A-frame jack that will bolt up to the 3 bolt mounting plate you have on your trailer.

I think the best value for an A-frame tongue jack is the Stromberg Carlson # SC63VR which is rated for 4500 pounds of tongue weight. This is 1000 pounds more than other models, and even though you may not need this much capacity, you will find that the jack motor runs quick and effortlessly. This will add years to its life. This jack also has a unique clutch that prevents damage from overextending or retracting the jack foot - the most common reason for jack failure. I also like that is has a generous 23" lift, including a time-saving drop-foot. It includes LED lights for operating the hitch in the dark, and a built-in bullseye leveling bubble.

You might also consider the Ultra-Fab # UF38-944026 vinyl jack cover to keep the elements out when not in use.

expert reply by: Jameson C

1

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Answer 1

It's a combination of the power of the motor, the ratio of rotations per inch, as well as the capacity of the materials used etc. In general the capacity of the jack doesn't affect the appearance that much. You should also keep in mind that…

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Answer 2

On the bottom of the motor of the Stromberg Jack part #SC63VR there is a release lever setup that gets inserted when you want to manually crank the jack to release it basically from the motor.

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Answer 3

That small metal tube you mentioned is the clutch release for the motor of the Stromberg Carlson Electric Trailer Jack #SC63VR. If you were to need to manually raise or lower the jack you'd insert that metal piece into the side of the motor to…

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Answer 4

In a typical RV-style 7-way the 12V charge circuit is carried on the pin at the 1-o-clock position as you look at the socket from the rear of the vehicle. Please refer to the linked photo. The 12V feed from a vehicle 7-way can deliver just enough…

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Answer 5

I would be happy to help you. Based on the information you have given me I am going to give you the height of the Stromberg Carlson Electric Trailer Jack Item #SC63VR you referenced. This jack sits 21 1/4" above your trailer's frame. You…

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Answer 6

We do carry the 33" Ark Stabilizer Jack that you are looking for with part #ARK77FR. I was able to track down a few drawings that you should find helpful. These are for the 30" #ARK94FR and the 24" #ARK34FR Stabilizer jacks. I'm…

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Answer 7

I contacted the manufacturer about the lengths for these stabilizer jacks and have included the information they were able to provide me. The Ark Drop Down Corner RV Stabilizer Jacks #ARK34FR are 422 mm (16.6") collapsed and 600mm (23.6")…

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Answer 8

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 9

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 10

The Ark Drop Down Corner RV Stabilizer Jacks #ARK94FR are able to lock into place at 30 and 60 degrees as stabilizers. They also have the 90 degree position where it is rated for 1,929 lbs and then the stored position.

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Answer 11

Hi Tom, I have two options to replace the electric tongue jack on your Jayco Whitehawk: Option 1: Electric Jack w/ Footplate #EJ-3520-BBX. This jack is going to be your no-frills 'get the job done' style jack. It has a 3,500lb capacity and…

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Answer 12

I went ahead and pulled this Replacement I-Beam Jack Bracket #LC349975 from our warehouse to measure. I have attached the dimensions below. Hope this Helps.

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Powered A-Frame Jack Recommendation for Replacing Broken Shelby Square Jack

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