U-Bolt Torque Recommendation for 1/2 inch Diameter On Trailer Suspension

Question

Question:

Hi, trying to get a torque value for the above U-bolts Thanks

asked by: Nick

1

Helpful Expert Reply:

For 1/2 inch trailer u-bolts that attach to axle the recommended torque value is between 45 and 70 ft lbs of torque.

expert reply by: Jameson C

1

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Answer 1

Since you have a Yakima Ridgeback bike rack part #Y02458 the correct zip strap replacements is the part #Y8890297.

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Answer 2

If the U-bolts are 9/16 inch diameter, the torque specs should be between 65 to 95 foot lbs. If the U-bolts are 3/8 inch diameter, the torque should be between 30 and 50 foot lbs.

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Answer 3

Hey Rob! Both the 25-1/4" long item #DX95CR and item #e44SR springs will work if you're replacing a 25-1/4" long leaf spring. They're close enough in capacity so long as you're not using too light of a spring with the 4,400 lbs…

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Answer 4

Hello Rene, thanks for reaching out. It is pretty typical for RV manufacturers to use axles that are not rated for the full GVWR. They say this is because 10%-15% of the camper weight is on the hitch instead of the axles. They will put the bare…

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Answer 5

Hello Doug, Great question, and I am happy to make sure we get you into the right leaf spring. Since there is not a real standard for putting trailers together I am going to need a measurement from you. I need you to measure the Leaf Spring as…

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Answer 6

I checked your order notes and the leaf springs you bought last year were the part #e28SR which are for 5k axles. Since this is over the capacity of your axle failure would not have been caused by over loading the trailer assuming you stayed under…

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Answer 7

Though I do tend to warn people about the ride getting stiffer when upping the capacity of their leaf springs, you are correct in that you will technically never be fully "unloaded". I do have to mention that this could still happen, but…

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Answer 8

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 9

The typical springs for the AL-KO 4,400 axles are one of two lengths. If you have the 25-1/4 inch length, then you will want the 4-Leaf Double-Eye Spring for 5,000-lb Trailer Axles #e28SR, but if you have the 26 inch springs, you will want the 6-Leaf…

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Answer 10

I can certainly point you in the right direction. Unfortunately we do not have access to Dexter's serial number database, and I cannot recommend springs based off of axle specs. If only it were so easy right? The best way to go about replacing…

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Answer 11

For your 2014 Forest River XLR Hyper Lite TT Toy Hauler, they used Dexter axles with spring center measurement of 68.5 inches and hub face to hub face measurement of 83.5 inches according to my contact at Forest River. When you upgrade the axle…

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Answer 12

The shackle straps included in the Lippert Tandem Axle Equa-Flex AP Kit - Wet Bolts - 3-1/8" Long Shackles #LC64FR you mentioned are 3-1/8" center to center and 4-3/8" overall length as shown in included diagram. Using the longer…

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U-Bolt Torque Recommendation for 1/2 inch Diameter On Trailer Suspension

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