What is the Torque Spec for a 5/16 Inch U-Bolt

Question

Question:

what should I torque the u bolts holding slipper springs to axle. the axle is rated 2200lbs. The springs are 1 3/4inch the u bolts are 5/16inch diameter.

asked by: Mike

1

Helpful Expert Reply:

The torque spec for a 5/16" diameter u-bolt is 65 ft lbs. If you do not already have a torque wrench we have the Powerbuilt Dual Drive Torque Wrench part # ALL944001 which contains both a 3/8" and 1/2" drive.

expert reply by: Conner L

1

Answer 1

Well shackle length is mainly based on the height difference between the front and rear hangers. The rear hanger normally doesn't hang as low as the front so that the shackle can offset the difference and add the ability to move. What is the…

view full answer...

Answer 2

The closest leaf spring set we have available to the 22-1/4 inch length you mentioned is the 3-Leaf Double-Eye Spring #SP-113275. This double-eye leaf spring features a length of 23-1/2 inches from the center of the spring eye to the center of the…

view full answer...

Answer 3

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.

view full answer...

Answer 4

For a 4-lug steel wheel with 1/2-inch studs like #AM20124 the correct torque range is 75-85 ft-lbs. For a 15-inch steel wheel like the item #TA37RR that you referenced the torque range is 90-120 ft-lbs. In general the larger a wheel is the more…

view full answer...

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.

view full answer...

Answer 6

There is a way to determine axle placement on a trailer. I have included a picture that explains the calculations needed to determine axle placement. It is based on tongue weight and gross trailer weight. If you know the combined axle capacity then…

view full answer...

Answer 7

Torque specs for wheel lug nuts will vary depending on the diameter of the lugs, type of lug nut and the wheel's material. The linked chart details the recommended torque for many combinations. Dexter Hub/Drum #84546UC3 has 1/2-inch studs and…

view full answer...

Answer 8

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…

view full answer...

Answer 9

I recommend the Kenda 205/65-10 Bias Trailer Tire with 10" White Wheel #AM3H390 for your 1994 Coleman Pioneer Arcadia. The 205/65-10 is the current size tire that replaced the 20.5x8-10 you have on your Coleman. The wheel uses the 5 on…

view full answer...

Answer 10

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…

view full answer...

Answer 11

To correctly measure a leaf spring, you'll want to jack the trailer up on jack stands so the axle is hanging freely, then measure directly across from the center of one spring eye to the other, as shown in the provided diagram. The height of the…

view full answer...

Answer 12

I contacted MORryde and this does happen from time to time as the weight of the trailer can spread out the axles due to downward pressure on the springs/suspension. Odds are the 35" wheel base #MR27ZR will be the correct one for you, but they…

view full answer...

What is the Torque Spec for a 5/16 Inch U-Bolt

Product Page this Question was Asked From

Continue Researching