How Tight Should Nuts of Trailer Suspension Shackle Bolts be Torqued To

Question

Question:

On a tandem axle utility trailer with 3500 lb axles, what should the leaf spring shackles be torqued to after replacing bushings?

asked by: Rick R

0

Expert Reply:

Shackle bolts don't typically have a specific torque value. They're usually tightened until the knurled portion of the bolt pulls completely into the shackle strap and the bolt head is ran all the way down to the shackle strap and you have at least 2 threads extending past the face of the nut.

expert reply by: Jameson C

0

Answer 1

There is no specific torque rating for shackle bolts. You'll want to ensure that the bolts you use are long enough so that when installed you will have at least 2 threads protruding from the nut. Make sure that the bolt you're using has a…

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Answer 2

The clip that you are talking about that is on your leaf spring, like part #e54SR, is called the rebound clip. It keeps the main leaf spring from breaking on a rebound. Typically the band is located on the front-most side of the trailer but it…

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Answer 3

There should be enough free play in the shackles to allow them to move. There is no specific torque rating for shackle bolts. The first thing you should make sure of is that the bolts you use are long enough so that when installed you will have at…

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Answer 4

According to our FAQ on slipper springs, linked for referenced, the torque specs are as follows: Torque Ratings 1/2 inch Bolts: 45 ft/lbs - 70 ft/lbs 9/16 inch Bolts: 65 ft/lbs - 95 ft/lbs 5/8 inch Bolts: 100 ft/lbs - 120 ft/lbs The Replacement…

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Answer 5

Hey Jerry, we do have one wet bolt that is long enough to be used with the Correct Track lift kits part #RR23QX with the part #LC126197. This is about half an inch longer than standard suspension bolts.

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Answer 6

I do have a couple possible solutions for raising your pontoon trailer, however increasing the shackle strap size will not be your best option. A more efficient way for raising the suspension on the trailer will be to use longer hangers. Unlike…

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Answer 7

The shackles on suspension systems like part #TRSL350 are designed to be fairly loose because the equalizer on your trailer suspension needs to be able to move without binding. The best thing to do when tightening down shackle bolts is to use lock…

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Answer 8

It appears the 3-Leaf Double-Eye Spring #SP-072275 is the closest size we have to the measurements on your 2012 Coachmen Clipper 126 Popup camper. This leaf spring is rated for 3,330lbs when used as a pair while your trailer uses a 2,500lb axle. It…

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Answer 9

To slightly lower your trailer that has had an "axle flip" kit installed you would want to use slightly shorter shackle straps, not longer ones. Shorter shackles will let the axle rest closer to the trailer frame, which lowers the trailer…

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Answer 10

Hi Austin, I can help you determine the right replacement double-eye leaf springs for your 2018 Jayco trailer, though we don't have any way of knowing what specific ones you need. It's pretty easy though, as all you need to do is measure your…

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Answer 11

The most important factor when picking out trailer leaf springs is matching the capacity first and then length second. So since you have a 3,500 lb axle the best option is the leaf spring #e59SR which measures 23-1/8 inches in length. You will have…

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Answer 12

In order to find the correct replacement leaf spring for a trailer you first need to start by noting the type whether that be slipper or double eye. Then, you'll need to measure their unloaded length via jacking up the trailer. If the springs are…

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How Tight Should Nuts of Trailer Suspension Shackle Bolts be Torqued To

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