How Tight Should Leaf Spring Shackle and Spring Eye Bolts Be

Question

Question:

I backed the shackle bolts off a quarter turn from tight. What about the front bolt? Tight or a quarter off from tight?

asked by: Dwight S

0

Expert Reply:

If the bolts for the shackle link and the leaf spring eye are too tight, the suspension won't articulate as it should. You want to run the bolt down tight, then back it off by a 1/4 turn, as you'd mentioned.

expert reply by: Mike L

0

Answer 1

I have attached for you below some common torque values needed for a trailer suspension system but a lot of these will vary by bolt size and other factors. U-Bolts: Varies by Size - 1/2" bolts: 45 ft/lbs - 70 ft/lbs, 9/16" bolts: 65 ft/lbs…

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Answer 2

Hey Tilo! The CE Smith Trailer Idler Hub Assembly #CE13515 from your order uses a lithium complex grease like LubriMatic LMX Industrial Strength Grease #L11390. When you're maintaining your hubs, you can use the chart below to see which grease…

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Answer 3

You will need the U-Bolt Kit item #APUBR-1 to use the 4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 27" Long item #SP-210275. The kit uses 1/2 inch diameter nuts that you will want to torque them down to about 70 foot pounds.

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Answer 4

Spring Hanger location dimensions are normally figured by the manufacturer and provided with the spring hanger kit, that includes all of the parts for installing the springs on the trailer frame. I have provided a chart that shows the spring hanger…

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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

There is no specific torque setting for the axle nut with the #AKIHUB-440-2-G-EZ-1K. Check out the installation video below starting at the 13 minute mark. The hub is overtightened at first to make sure everything is seated. Then he backs off the…

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Answer 7

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 8

I have attached a chart for you to take a look at that includes the lug nut torque specifications. If your wheel uses 1/2 inch lug nuts or wheel bolts like the 12 Inch Steel Spoke Trailer Wheel #AM20124 referenced in your question, you will torque…

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Answer 9

You can verify that the 10-19 grease seal included in Bearing Kit #BK2-100 is the correct one for your spindles by taking two measurements. First you want to measure the rear hub bore where the seal is inserted. The seal's outer diameter needs to…

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Answer 10

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 11

I recommend using the CE Smith Trailer Idler Hub Assembly #CE13515 for your Calkins boat trailer. These have the 5 on 4-1/2" bolt pattern and is prepacked and greased for your spindle. You can add the Bearing Buddy Bearing Protectors #BB1980A-SS…

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Answer 12

Based on the information I could find it appears your Shoreland'r LUV40TMXWMS1-16 uses standard 3,500lb axle and hubs. I always recommend verifying this as I have seen manufacturers make changes or trailers get axles changed due to being damaged…

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How Tight Should Leaf Spring Shackle and Spring Eye Bolts Be

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