Is There A Standard Bolt Pattern for Mounting a Jack to a Trailer A-Frame

Question

Question:

Are the bolt holes on all tongue jacks with a triangular mounting plate standard at 3-1/2inch on center or do they vary from manufacturer to manufacturer?

asked by: Ron G

1

Helpful Expert Reply:

Most jack manufacturers including Fulton, Bulldog and Dutton Lainson use slotted holes in the jack mounting flange. Three inches apart center to center is considered industry standard. Since the holes are slotted, there will be a bit of wiggle room if the holes in your trailer A-frame aren't exactly 3 inches apart.

expert reply by: Mike L

1

Answer 1

Thanks for the picture of your actuator that you are wanting to replace. The Demco Hydraulic Actuator part #DM8609502 would be a great option as it is designed to fit A-frames like yours. It has an 8k capacity, designed for a 2 inch hitch ball, and…

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Answer 2

The mounting hole dimensions of A-frame jacks are a standard 3 inches apart on center, so you will need to weld your new jack on. I highly recommend the etrailer Round, A-Frame Jack #TJA-5000S-B, which has a 5,000 lb capacity and will give you…

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Answer 3

The installation process of the Lippert Components Bolt-On Shock Kit part #LC281255 will be the same for a single axle trailer and a tandem/triple axle trailer, just repeated. When installing the shocks, you want to point them away from the shackle…

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Answer 4

The Triple-Axle Trailer Hanger Kit #APTT3 that you referenced is designed to work on axles with capacities of 2,000 lbs to 7,000 lbs so it should work very well for you. I attached a picture that has a chart that shows exactly how you should space…

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Answer 5

Ideally the trailer would need to have a flat surface on which to mount the upper bracket of Lippert shock kit #LC281255. Depending on the depth of the I-beam will determine if you'd need to box the frame where the bracket would install or if you…

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Answer 6

The installation process of the Lippert Components Bolt-On Shock Kit part #LC281255 will be the same for a single axle trailer and a tandem/triple axle trailer, just repeated. When installing the shocks, you want to point them away from the shackle…

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Answer 7

The SumoSprings Trailer Helper Springs #TSS-107-40 are a great alternate solution to the Lippert Shock Kit that you mentioned when you don't have the needed tire to frame clearance. The jounce-style urethane springs will essentially act as shock…

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Answer 8

I checked with Lippert and the upper part of the jack should point away from the rear hanger. So if you check out the picture I attached you'll see that the shock "leans" towards the front of the trailer.

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Answer 9

I will be happy to explain how to install the shock kit #LC281255. In addition to the instructions below I have also included a picture of the actual instructions. 1. Raise trailer and jack up the axle to release pressure on the springs. 2. Remove…

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Answer 10

You will need the Replacement Shock Upper Mounting Bracket #LC29ED for 3" Lippert Gas Shock Kit #LC281281. The 3" upper mounts stick out further than the Mount #LC22FR for the 2-3/8" Kit #LC281255.

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Answer 11

Some trailers do have shock absorbers; it isn't all that common but is gaining popularity, mostly among camping trailers. The main reason it's not too common is most people aren't worried about the ride being that smooth. Usually the…

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Answer 12

Because they are maintenance free, less expensive and easier to install than shocks, I'd definitely recommend going with the SumoSpring option. They'll work with your existing leaf spring suspension to help dampen the suspension, but will…

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Is There A Standard Bolt Pattern for Mounting a Jack to a Trailer A-Frame

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