Removing Square Axle from Leaf Springs to Replace Axle on 5x8 Trailer

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Question:

I am replacing the axle on my 5x8 trailer. The existing axle is underslung and is installed without a spring seat. I am having trouble removing the existing axle from the leaf springs. Is it possible that the center bolt for the leaf spring thread directly into the square axle tube? At the very least, the square axle tube would have to have a hole in it to accommodate the leaf spring through bolt. I was hoping to reuse the leaf springs, but if I cant get the axle to separate, I may need to replace the whole suspension, including the leaf springs.

asked by: Aaron

0

Expert Reply:

On square axles, there is traditionally a hole that the leaf spring has a nub that fits in to act as that securing point that a spring seat on round axles would and then the u-bolts secure the axle to the springs. You can see this on the CE Smith Trailer Axle Beam with EZ-Lube Standard Spindles - Galvanized - 57-1/2" Long - 1.8K # CE33201GA and photos on part # CE23102. There is often a need once the u-bolts are removed to use direct downward force or even a pry bar to separate the springs from the square axle. You can do this without damaging the springs.

I have never seen the bolt go all the way through the springs and axle, so if that is what they did on your axle, then I recommend replacing the springs as well.

expert reply by: Jason S

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Answer 1

For a 2,500 lb leaf spring we have the part #e66SR that would work well. This spring is 25-1/4 inches long. For u-bolts we have a few different sizes depending on the size of your axles. What you will need to do is measure the diameter of your axles…

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Answer 2

For a replacement U-Bolt closest to your measurements, I have the Replacement U-Bolt with Nuts, part #1753223, which is for 1-1/2 inch wide, square axles. We also sell these U-Bolts in a pair, part #SP01-120. The Replacement U-Bolt, part #1753223,…

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Answer 3

You will want to choose the diameter size of U-Bolts you need by the axle type (round, square) and the axle diameter. The Redline 2 Inch Square Trailer U-Bolt, part #SP01-160, you have referenced is for a 2 inch square axle. It is a 9/16 inch…

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Answer 4

The only 1 leaf, 1-3/4 inch wide leaf spring we offer is #e46SR. This spring sounds like it might be a fit for your trailer. It is a single leaf double eye spring that measures 25-1/4 inches long from center of eye to center of eye. This spring is…

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Answer 5

Yes, you can replace a square axle with a round beam axle so long as it is rated appropriately. You will need a new u-bolt kit for the round 2K axle, part #APUBR-10. We offer beam axles rated up to 3500-lbs and also axle-less suspension kits from…

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Answer 6

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 7

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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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 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Answer 10

Since both a ST145/R12 size tire, like the Kenda Karrier S-Trail #AM10130, and a 5.30-12 size tire, like the Kenda K353 #AM10068, fit a 12 inch wheel, a ST145/R12 size tire can replace a 5.30-12 size tire. Keep in mind that these tires do have…

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Answer 11

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 12

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Removing Square Axle from Leaf Springs to Replace Axle on 5x8 Trailer

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