1. Trailer Leaf Spring Suspension
  2. Redline
  3. U-Bolts
  4. Axle Mounting Hardware
  5. Square Axle - 1-1/2 Inch
  6. 5 Inch Long
Replacement U-Bolt with Nuts for 1-1/2" Wide, Square Trailer Axles - 1/2" Diameter

Replacement U-Bolt with Nuts for 1-1/2" Wide, Square Trailer Axles - 1/2" Diameter

Item # 1753223
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Our Price: $12.08
Trailer Leaf Spring Suspension
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Shipping Weight: 0.67 lbs
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1753223 - 1/2 Inch Diameter Redline Trailer Leaf Spring Suspension
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5" Long U-bolt, in conjunction with a U-bolt plate and an additional U-bolt, attaches your square, 1-1/2" wide axle to your leaf springs. Lowest Prices for the best trailer leaf spring suspension from Redline. Replacement U-Bolt with Nuts for 1-1/2" Wide, Square Trailer Axles - 1/2" Diameter part number 1753223 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (57)
  • Q & A (9)
  • Videos (1)
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Redline Trailer Leaf Spring Suspension - 1753223

  • U-Bolts
  • Axle Mounting Hardware
  • Square Axle - 1-1/2 Inch
  • 5 Inch Long
  • 3500 lbs
  • 1/2 Inch Diameter
  • Redline

5" Long U-bolt, in conjunction with a U-bolt plate and an additional U-bolt, attaches your square, 1-1/2" wide axle to your leaf springs.


Features:

  • Used with U-bolt plate to secure axle to leaf springs, which are mounted to the trailer frame
  • Attaches with a U-bolt plate (sold separately) and an additional U-bolt with same dimensions (sold separately)
  • Threaded 2" on each side
  • Fits square, 1-1/2" wide trailer axles
  • For 3,500-lb axles only
  • Includes 2 nuts


Specs:

  • Bolt diameter: 1/2"
  • Length: 5"
  • Width: 1-1/2"


U-Bolt Diagram



1753223 U-Bolt for 1-1/2" Wide Square Trailer Axles





Video of Replacement U-Bolt with Nuts for 1-1/2" Wide, Square Trailer Axles - 1/2" Diameter

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Redline Trailer Suspension 1753223 Review

Today, we're going to be taking a look at a replacement U-bolt with nuts for 1 1/2" wide square trailer axles. You would use the U-bolt with a U-bolt plate and an additional U-bolt with the same dimensions to secure an axle to the leaf springs, which are mounted to the trailer frame. This is going to feature a threaded portion on each end. That threaded portion measures about 2" on each side. If we put a ruler on that, you can see that the threaded portion, from the bottom of the post to the top of the thread, measures 2" long. This is designed to fit a square 1 1/2" wide trailer axle. It is for 3500 pound axles only.

It's going to come with the included nuts. The opening is going to measure about 1 1/2", so that's how we can tell it's for 1 1/2" wide trailer axles. The bolt diameter is 1/2". The length from the bottom of that portion, there, to the end of the threaded area is going to measure 5" long. Then, again, that opening is going to give us an inside width measurement of 1 1/2". That's going to do it for today's look at the replacement U-bolt..


Customer Reviews

Replacement U-Bolt with Nuts for 1-1/2" Wide, Square Trailer Axles - 1/2" Diameter - 1753223

Average Customer Rating:  4.9 out of 5 stars   (56 Customer Reviews)

5" Long U-bolt, in conjunction with a U-bolt plate and an additional U-bolt, attaches your square, 1-1/2" wide axle to your leaf springs.

- 1753223
by:

only place i could find this particular u-bolt. very well made. very pleased. good price. 215917



- 1753223
by:

We are working on a vintage Shasta travel trailer. We were thrilled to find a very necessary part . 2 U-bolts ..the RIGHT size. E-Trailer were very helpful in filling our order. Clear, concise and prompt delivery. We will use them again. 883935



- 1753223
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Exactly what I neede. 883277



- 1753223
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Used this to mount tail light brackets on my old M101-A2 trailer. Fit like a glove around the framework. 877572



- 1753223
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Great service! 862491



- 1753223
by:

Very happy with the great product, great price, as well as fast, fair-priced shipping. Will definitely use etrailer again when the need arises. 857253



- 1753223
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856181



- 1753223
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Took a long time to ship. I would of payed usps flat rate, but was not an option. 849186



- 1753223
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Excellent product and hard to find. The shipping was super fast which allowed me to finish my project fast! 806134



- 1753223
by:

product is very high quality and will more than likely last the life of my boat trailer. i'm very pleased with product,thank you. 794415



- 1753223
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Exactly what I needed to fabricate two mounting brackets to attach the canopy I built for my Kubota. Thanks! 778721



- 1753223
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what can I say, it works. 770795



- 1753223
by:

Haven't installed them yet but they look perfect—the videos on you site are extremely helpful, but it would be even better if you suggested this product any time someone browses or buys a set of 1.5" wide leaf springs (ideally you'd suggest both this product and the U-bolt equivalent to cover both folks with square and cylindrical axles). Thanks again for your excellent service! 724529



- 1753223
by:

I have a1962 camp trailer that I wanted to reverse the axle I searched through my city, and was not able to find square U bolts I went to our”Trailer” expert business and was told they not linger carried 1 1/2 bolts, they referred me to a speciality spring shop only to find he did not have the capability I finally look online and found that Etrailer had in stock I will now go to Lori at Etrailer 1st 724520



- 1753223
by:

Arrived quickly. A perfect fit (sizing accurate). I used these to build a custom mount. 721175



- 1753223
by:

Product is high quality and as described on etrailer.com. Extremely happy with purchase. Will definitely visit site again. 714323



- 1753223
by:

Fit perfect for an older trailer with 1.5 in axle and 1.75 leaf springs. Exactly what I was looking for. Thank you etrailer! 705909



- 1753223
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Recommend and fast delivery 703823



- 1753223
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Exactly what I ordered and needed and was delivered much sooner than I expected. I will order again. 692471



- 1753223
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Worked great 682148



- 1753223
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I sent for 4 ubolts for my horse trailer because etrailer was the only one who had the right size . I ordered them overnight and they came at 12 so o had time to put them on the next day . I put them on they fit they were the ones I ordered so o saved $680 by using my own trailer and not needing to hire a hauler . I’m extremely happy with my purchase and the speed it got here so I give 5 stars because you guys earned them . Thank you I’d do business with you again in a New York City second ! 679479



- 1753223
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As advertised..got it quick 673087



- 1753223
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Good quality products and easy install, just what I needed! Thanks! 672782


Comments
Great! Product was of good quality and fit the application well.
Kristina - 07/23/2020

94932

- 1753223
by:

I couldn't find the proper size at any stores near me, found them at "etrailer" at a great price with reasonable shipping and received them a day earlier than expected, they fit perfectly, definitely will keep "etrailer" in mind for future projects 672074



- 1753223
by:

Exact description, exact fit 620289


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Show More Reviews

Ask the Experts about this Redline Trailer Leaf Spring Suspension

  • What is the Axle Capacity for an Old Trailer with Hub # 22834
    The bearing numbers you have provided indicate that you have hub 22834. This hub is no longer made but there are parts for it such as the bearings # 2788 and # 1779 an the races # 2729 and # 1729. The hub is rated for 2,600 pounds which means it fits a 5,200 pound axle.
    view full answer...
  • Need Replacement Square U-Bolt for 1-1/2 Inch Axle
    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, will work great with your 1-1/2 Inch, 1800 pound capacity axle. U-Bolts do not typically carry a weight rating.
    view full answer...
  • U-Bolt Dimension Measured on Bolt Centers
    I pulled a Replacement U-Bolt with Nuts # 1753223 from our warehouse to measure the distance between the U-bolts measured on center and found that dimension to be right at 2 inches. Check out the video I attached that shows me taking this measurement with a dial caliper.
    view full answer...
  • Should Trailer Leaf Springs Be Easy to Move Up and Down
    If the slipper springs on your trailer have a lower capacity like # WIC2 at 500 pounds apiece, then it would be possible to physically compress them with the trailer empty but it should not be all that easy. With a load on the trailer it will be easier. If you find that you can move the springs then it is probably time for some new ones. On higher capacity springs you probably would not be able to move them at all without a load on the trailer. I have included a link to our slipper...
    view full answer...
  • Determine Square Axle Capacity
    Square axle capacities are pretty hard to determine. Unlike round axles, they do not have set capacities based on their dimensions. We have no information for the bearing numbers you listed. But what you can do is give me some exact measurements of your spindle and we should be able to see if there is a hub we carry that would fit so that you could at least get a ballpark on your capacity. I need the dimensions of where the bearings and seal ride. You might be able to contact the...
    view full answer...
  • What is the Weight Capacity of a Trailer Axle with # L44643 Inner and Outer Trailer Bearings
    If both the inner and outer bearing are # L44643 bearings, that means it can fit on a BT8 spindle. One BT8 spindle, like # R104BT8, has a capacity of 1,000 pounds. So on a single axle with 2 spindles, it would have a 2,000 pound capacity. The axle and/or trailer capacity should be on a sticker or plate on the trailer tongue.
    view full answer...
  • How to Determine Axle Weight Capacities on a Trailer
    The axle capacity should be stamped on the frame of the trailer near the coupler of the trailer. It also could be listed somewhere on the axle. I wish there was an industry standard weight capacity for the 1.5 inch by 1.5 inch square solid steel axles but there is not. If you do not see a weight capacity listed in either of those places you can remove the hubs on your trailer and give me the bearing numbers that are listed on the spindles. I will be able to tell which hubs and spindles...
    view full answer...
  • What is the Torque Requirement for 1/2 Inch U-Bolts for Trailer Suspension
    According to our FAQ on slipper springs, linked for referenced, the torque specs are as follows: Torque Ratings 1/2 inch Bolts: 45 ft/lbs - 70 ft/lbs 9/16 inch Bolts: 65 ft/lbs - 95 ft/lbs 5/8 inch Bolts: 100 ft/lbs - 120 ft/lbs The Replacement U-Bolt, # 1753223, uses a 1/2 inch nut so it would fall into the 45 to 70 foot pound category.
    view full answer...
  • Replacement U-Bolts Compatible with CE Smith U-Bolt Kit for 1-1/2 Inch Square Axle
    The CE Smith U-Bolt Kit for Mounting 1-1/2" Square Trailer Axles - 3-3/8" Long U-Bolts - Zinc # CE23102 unfortunately doesn't have direct replacement parts outside of the kit. The Replacement U-Bolt with Nuts for 1-1/2" Wide, Square Trailer Axles - 1/2" Diameter # 1753223 is the closest we have to what you are seeking but it is not zinc plated and is 5 inches long.
    view full answer...




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Info for this part was:

Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
John H
Installed by:
Cole B

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