Are There Torque Specs for Trailer Suspension Hanger Shackle Bolts

Question

Question:

What is the torque specs on this product? It came with no instructions.

asked by: Andrew

0

Expert Reply:

There isn't a specific torque spec for shackle bolts like what come with the hanger kit part # APS5 you referenced. They need to be secure enough but if they are too tight then the leaf springs will bind and cause problems in your trailer's suspension. The lock nuts included with the kit will ensure the bolts do not fall out. I recommend tightening the nuts until they makes contact with the shackle strap and then add another 1/4 turn. This should give you the right amount of torque needed to secure the nut and prevent the suspension components from binding as well as backing off.

expert reply by: Jameson C

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Answer 1

I checked with Dexter and here is the information on tightening the spindle nut on your 8K axle: 1. After placing the hub, bearings, washers, and spindle nut back on the axle spindle in reverse order as detailed in the previous section on hub…

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Answer 2

After you've packed the bearings and assembled everything, carefully slide the hub assembly onto the spindle and install the outer bearing. Install the spindle and tang washer and run the spindle nut down finger tight, then rotate the hub back…

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Answer 3

For the 9/16 inch diameter shackle bolts included in the Redline Triple-Axle Trailer Hanger Kit #APTT5 referenced in your question, you will want 65 to 95 foot pounds of torque. This kit can be used to attach 6 leaf springs to your trailer frame. I…

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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

If you're referring to the bolts that attach the shackles in your suspension system to your #APS4 hangers, you won't need to torque them to a specific rating since over tightening those bolts would squeeze the shackles against the leaf…

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Answer 6

When installing suspension components on your trailer there is not going to be a torque setting for the hanger bolts because they really only get tightened down to hand-tight. Going more than hand-tight can pinch the hangers closed and prevent the…

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Answer 7

When replacing equalizer bolts and shackle bolts you will not use a specific torque rating for tightening the 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 least 2…

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Answer 8

According to the installation instructions from Dexter Axle the torque specs for the wet bolts on their Dexter E-Z Flex Suspension Kits, like part #K71-653-00, is 30 - 50 ft-lbs. I have attached a clip from their instructions for you to check out.

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Answer 9

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 10

In regards to trailer suspension kits like the Suspension Kit for Tandem-Axle Trailers part #AP233, the shackle bolt heads are indeed seating into the hangers via the knurling on the bolt. If you hold a wrench on the bolt head and tighten the nut,…

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Answer 11

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 12

If you will be using 9/16 inch fasteners then torque them down to 110-114 foot pounds. If using 1/2 inch torque them to 76-78 foot pounds. You can find all sorts of different torque specs for the same size bolts or nuts and they will all be around…

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Are There Torque Specs for Trailer Suspension Hanger Shackle Bolts

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