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

There is no specific torque rating for shackle bolts. Basically for the middle bolt there should be enough free play in the shackles to allow them to move. Tightening the shackle bolts too much will squeeze the shackle straps against the leaf springs…

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Answer 2

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 3

The Karrier ST205/75R14 #AM32156 is rated for 1,925 lbs at 60 psi while the Karrier ST215/75R14 #AM32182 is rated for 1,870 lbs at 50 psi. These are ratings that Kenda, the manufacturer, decided would be the best for these specific tires after their…

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Answer 4

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 5

The instructions for the Road Armor Shock Absorbing Equalizer Kit like part #LC696740 calls for a specific torque rating when installing the wet bolts and nuts (see linked instructions for specifics). If you aren't able to torque the nuts and…

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Answer 6

Hey Mario, the correct brake assembly set you need for the 4,400 lb axles on your trailer is the part #LC46WD and #LC96WD. Then for a hub/drum you'd want the part #8-407-5UC3-EZ and you'd be set. The hub includes all the needed bearings and…

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Answer 7

According to my contact at Dexter, the Dexter #BP01-225 is rated for use on up to a 7K axle and it is intended to fit Dexter and Dexter Nev-R-Adjust brake assemblies. It has a larger profile and may not fit on Hayes/Alko brake assemblies. Where as…

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Answer 8

Yes, the 25-1/8" leaf springs #e54SR you ordered will work for you. What happens to leaf springs over time is that they generally elongate a bit (flatten out) so to choose replacement double-eye leaf springs you do want to take that into…

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Answer 9

The difference between these two parts comes down to the size of the brake assembly and hubs that are on your axles. The #AKBRKR-M10 that has green wires are designed for 10" electric brake assemblies, where the #BP01-225 are designed for…

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Answer 10

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 11

The Dexter Trailer Axle #8327816-EB would be your best replacement option. This includes the hub/drum and brake assemblies so you won't have to piece that together separately. It matches your 86-1/2" hub face measurement but the spring…

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Answer 12

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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How Tight Should Leaf Spring Shackle and Spring Eye Bolts Be

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