Timbren Trailer Suspension Installation for Trailer with Narrow U-Bolt Plate

Question

Question:

According to the instructions, for trailers there should be no gap between the rubber and the axle. However, the space between the U-Bolts on the axle surface is only 2 inches, while the bottom of the rubber enhancer is about 2 3/4 inches. Therefore, the rubber can not make contact with the axle and is being blocked by the U-Bolts that are too narrow. Am I missing something or doing something incorrectly? What U-Bolts and Plate would you recommend as I am having difficulty finding ones that will fit. Thank you very much for your time and I appreciate any and all advice.

asked by: Jared

0

Expert Reply:

The Timbren Trailer Suspension Enhancement System # TTRA1702 doesn't have to fit between the u-bolts of the trailer axle. All that is required is that the plate attaches to the frame and the rubber spring touches the axles so you could mount is so that the rubber spring contacts the axle to the inside or the outside of the u-bolts on the axle if needed.

expert reply by: Jameson C

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Answer 1

The amount of space needed is going to vary depending on the spring that you use. If you use the Timbren Trailer Suspension Enhancement System Light-Duty Trailers 1,000 lbs #TTRA1702, those springs are only 2-3/4" tall so you can get away with…

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Answer 2

We don't offer airbags, like what is normally installed on a tow vehicle, for trailers. We do have jounce-style helper springs that may work for you. The Timbren Trailer Suspension Enhancement System #TTRA1702 install onto your trailer's…

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Answer 3

The Timbren Trailer Suspension Enhancement System #TTRA1702 is 2-3/4" tall with no load on the spring. This particular system is designed to mount to the frame with the included bracket(see image) and when the suspension compresses the axle will…

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Answer 4

Adhesive safety strip #NSWS is meant as a replacement for certain stair sets and would not be ideal for use on a boat trailer. The Tough Tread Strips, #EM08010, would be a better option. They do use the 3M brand adhesive and would work well on boat…

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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

You can use leaf springs that are rated higher than the axle without any issues as long as they measure the correct measurement for your trailer. For example the 6-leaf double eye spring for 7,000 lb axles part #e64SR measures 24-7/8" eye to…

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Answer 7

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 8

There is no exact way to determine the leaf spring length. The best way to determine the length for a replacement is by measuring the existing leaf springs. The hanger distance and shackle length can help you get a good idea, but you're looking…

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Answer 9

Hello Mark, thanks for reaching out. When replacing leaf springs, it is important the new springs are identical in length to the old ones. There is a small amount of tolerance, like 1/2" or less, but any more than this can throw the suspension…

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Answer 10

Thank you for providing the specs for the suspension components that you already have. Correct hanger spacing really depends on the components being used such as springs, hangers and equalizers. Most of the hanger spacing dimensions that we have are…

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Answer 11

Hi Leo; I would start by checking to see if there are axle tags on the axles. They will probably have the capacity on them or at least a serial number the axle manufacturer could use to identify the axle. If the trailer manufacturer is still in…

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Answer 12

Hello Rocky, thanks for reaching out. If your new leaf springs do not have as much of an arch as the old springs they are definitely not going to help your situation if your tires are already rubbing on the fenders. What we would usually do here is…

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Timbren Trailer Suspension Installation for Trailer with Narrow U-Bolt Plate

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