etrailer Trailer Jack JSP-100 Review Video

Most jacks have an outer tube diameter of 2-1/4 inches. We do have a jack that is slightly smaller with the outer diameter being 2 inches. It is the Dutton-Lainson A-Frame Trailer Jack #DL22530. This will be a great option for your 1948 Mobile…

The best replacement for your Shelby A-Frame Coupler 5104 is the A-Frame Trailer Coupler part #CA-5400-B. The Shelby 5104 fits a standard 50-degree a-frame, has a 13,000 lb weight capacity, and uses a 2-5/16" hitch ball. The A-Frame Trailer…

I attached a picture that has the dimension of the #BDSPBQ50 that you referenced. I wasn't sure what other plate you were referring to so I grabbed dimensions for the #BD003135 and the #DL22763.

That is definitely a feature which worries me about the B&W Continuum Weight Distribution System #BW78FR. While there is not a specific measurement I can give you as the bars move up and down depending on the load placed on the bars, B&W…

We currently have 3 different trailer jack support plates. I have included other dimensions in the included photos except for #BDSPB50 which was not available. #DL22763 is 1/8 inch thick. #BD003135 is 1/8 inch thick. #BDSPB50 is 1/8 inch thick. The…

Thanks for the photos. You will need to weld on a plate like the Bottom Support Plate for 2-1/4" OD A-Frame Jacks - 5,000 lbs #JSP-100. It sounds like you will need a couple of these plates to create a bracket instead of a reinforcement because…

For a 5000-lb travel trailer with tongue weight (TW) of 450-lbs you can use a weight distribution/sway control system such as the Equal-i-zer 4-Point Weight Distribution System #EQ37060ET which works effectively over a range of trailer TW from 200-…

The Demco Cast Head Coupler eZ Latch #DM37ZR coms as the coupler only so you would need to supply the mounting hardware. You will need 1/2" bolts that are at least Grade 5 rated. Anything higher than that will just be even stronger and work just…

The Lippert Components #LC285318 uses a standard 3 inch on center bolt pattern. You will most likely need to drill some new holes in your coupler to allow for the standard mounting when replacing your trailer jack. I recommend the Bottom Support…

Your math is correct in your trailer weight load example. If a fully-loaded tandem axle trailer weighs 4000-lbs then each of the 4 tires will bear 1/4th of that load, or 1000-lbs. In this case a tire rated for 1300-lbs would provide a good safety…

Your trailer should have an ID tag on the trailer tongue that lists the VIN as well as the GVWR (Gross Vehicle Weight Rating) which is the maximum the trailer plus its cargo can weigh. If the trailer doesn't list the GVWR on the ID tag, or if…

The Lippert Smart Jack Electric Trailer Jack w/ Footplate #LC643589 has the following dimensions above the mounting plate. It is 21.6" tall, 6.165" wide at the widest point of the head and 9.385" deep at the widest points. I have…