CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc
(365 reviews)
Price: $43.79
In Stock
CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc
Item # CE23103
Retail:$72.23
Our Price: $43.79
You Save: 39%
Orders above $99 qualify for Free Shipping
In Stock
Need help with installation?
Locate installers near me- All Info
- Reviews (365)
- Q & A (0)
- Videos (1)
- Photos
- Why etrailer?
CE Smith Trailer Leaf Spring Suspension - CE23103
- Boat Trailer
- Snow Trailer
- U-Bolt Kits
- Square Axle - 2 Inch
- 4-1/2 Inch Long
- 3500 lbs
- 1/2 Inch Diameter
- CE Smith
Mount your square, 2" wide axle to your trailer's leaf springs with this U-bolt kit. U-bolts, plates, nuts, and washers included. Zinc plating resists rust and corrosion - great for boat trailers.
Features:
- Mounting kit attaches trailer axle to leaf springs
- Galvanized plates and zinc-plated hardware resists rust and corrosion
- Includes:
- 4 U-bolts
- 2 U-bolt plates for 1-3/4" springs
- (8) 1/2" Hex nuts and washers
- Made in the USA
Specs:
- Application: 2" wide, square axle
- U-bolt dimensions
- Inner width: 2-1/8"
- Length: 4-1/2"
- Diameter: 1/2"
23103 CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc
California residents: click here
Video of CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for CE Smith Trailer Suspension - Leaf Spring Suspension - CE23103 Review
Today we're going to be taking a look at the CE Smith u-bolt kit for mounting 2" square trailer axles. The mounting kit is going to attach a trailer axle to the leaf spring. The plates are going to be galvanized steel, then the hardware is going to be steel construction but that's going to have a zinc plated finish on it, so overall the unit is going to do a great job at resisting rust and corrosion. This kit is going to include 4 u-bolts, 2 u-bolt plates, and then it's going to come with the appropriate hardware, so you're going to get 8 hex nuts and 8 washers, and those are going to be lock washers. We can tell that this is designed for 1 3/4" springs simply by taking a measurement between this hole and this hole, and we can see that- that measurement is right at 1 3/4". Now the plates themselves going this direction we're looking at 3 3/4", and then going this direction it's going to have a measurement of 4". It does have the center hole for punch out on the spring.
Then right here for the u-bolts, a couple measurements I want to go over with these, these are going to give us an inner width, measuring inside edge to inside edge, of just over 2" so that's how we know that there are designed for a 2" wide square axle. Center on center those posts are going to be separated by 2 5/8". The length, measuring from the bottom of this area here to the end of the stud, that's going to give a measurement of right at 4 1/2". Then the diameter of the u-bolts, so the thickness right here outside edge to outside edge, there are going to be a 1/2" diameter. That's going to do it for today's look at the CE Smith u-bolt kit for mounting 2" square trailer axles.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
- Wrong item was ordered
- Did not fit
- etrailer mistake
Customer Reviews
CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc - CE23103
Average Customer Rating: 4.8 out of 5 stars (365 Customer Reviews)
Mount your square, 2" wide axle to your trailer's leaf springs with this U-bolt kit. U-bolts, plates, nuts, and washers included. Zinc plating resists rust and corrosion - great for boat trailers.by: Mark10/26/2022
Easy transaction. Quick delivery. Parts in good condition and fit/work well. Installed in less than 1 hour.
by: Bill H11/01/2022
Perfect replacements for rebuilding the suspension on by boat trailer! Excellent quality parts very well made with exact fit!
This is my first time using etrailer.com but it certainly will not be the last!!
by: Gilbert07/29/2022
Only issue was the kit package was torn open and had 3 each of the 1/2-20 nuts and all 4 lock washers missing.
Comments
Thank you for reaching back out. We definitely want you to have all the pieces that should have come with your purchase. I will send this to our customer service team and they will be in touch.
-- 
Brooke M - 08/25/2022by: Deano12/05/2020
I used this kit to replace the rusted ones on my flatbed trailer. I also flipped it so the axle is on top of the springs to lower it for loading my lawn tractor. See before and after pics.
by: David05/05/2022
Everything fit perfect. I had to replace the leaf springs on my boat trailer. I have a 24' fiberglass boat that is launched and retrieved in the salt water the original springs only lasted 7 years. The new springs are heavier duty and painted or coated with a better material. Over al very very pleased.
by: dennis07/14/2017
Complete waste of time and money. I bought both springs, and this set of u-bolts plates from etrailer for a new 2" square axle. The u-bolts are too short. I'd suggest someone buy a new tape measure.
I also had to grind down the spring center bolt as it stuck out of the small adapter plate and kept the spring from seating correctly (used the adapter palte which came with the springs instead of drilling a big hole in my brand new axle.)
It is getting harder and harder to get the parts I need from these folks.
Now waiting for parts to come from another vendor.
by: G M05/04/2022
I purchased this hardware for a saltwater trailer that I use frequently because the original brackets corroded away. The hardware package was easy to install and the metal was heavier gauge than the original. Highly recommended for the advertised application.
by: David11/09/2022
Great finding parts to breath new life into old equipment. Recycling at its best and keeping usable items out of the dump.
by: Clint05/23/2022
Honest opinion. This was the easiest order for parts I have experienced. Parts were delivered quickly,and plenty of follow up by etrailer to ensure: order was as described, and delivered on time. My only place to order trailer parts.
by: Lenny 01/13/2023
Wow did not expect delivery so quickly and the parts look extremely well made, looking forward to replacing my old ones.
by: Charles03/07/2018
WOW sums up my recent trailer part purchases. The u-bolts fit perfectly and are well made...see attached photo and of my trailer with new parts installed. Outstanding quality, price, lightning fast delivery, and exceptional customer service from order to drop off at my doorstep. Will recommend and order again. Well done, e-trailer, and Thanks.
by: Felix01/12/2023
Excellent customer service and very good prices
by: Chris08/03/2022
Threads were destroyed on these, had to chase the threads on both the eye bolts and u-bolts. Definitely wont use this company again.
by: Randall 09/20/2022
Perfect fit for 2” square tubing
by: John06/01/2022
for a trailer build. Came quick, price great, good quality. thanks etrailer
by: Chris 10/23/2022
a lot thicker/heavier than what they replaced, perfect fit, very satisfied.
by: Karla07/25/2022
good quality products. Great Service.
by: Kenneth 07/12/2022
Good products at a fair price delivered very quickly thank you for your good service
by: Shawn06/27/2018
Out standing as all was. shipping is out standing order them on Friday after hours they where at my door Tuesday the next week out standing shipping. I did the same thing with brake plates all ready to put in ordered Friday I was in Oregon at the time they was at my house the next Tuesday or Wednesday standard shipping is out standing a long with everything I got here.
by: Cape Jim08/10/2017
Wth rusted out leaf springs on my trailer but with zero experience replacing them, I contacted etrailer and Shawn was very helpful in selecting the right parts and taking me through the process. She was patient in terms of helping me take the right measurements and suggesting the bolts and pieces I needed to do the job right.
Everything came well packaged and complete two days later. An hour after that the springs were in my trailer and now has a boat sitting on it.
Thanks!
by: Eric 09/28/2022
Fast shipping
by: Robert09/18/2022
Great ?? did the job
by: Duncan 10/22/2022
Fabulous service!
by: Redfish06/26/2020
Great replacement springs, I ordered brackets also. Cut all bolts with grinder and new ones went in like a charm. Didn't realize how bad the old ones were. Nice and easy upgrade.
by: Cordella08/17/2022
Excellent communication! Thank you for such great service! Will buy from you again! A plus service
25
364
Show More Reviews
See what our Experts say about this CE Smith Trailer Leaf Spring Suspension
- Recommended Axle Mounting Hardware for Square AxleIt sounds like the axles were attached with 2 inch U-bolts that are 1/2 inch diameter which are a standard size so it sounds like the axles are compatible with a standard U-bolt kit like the CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc # CE23103. If this is the case, that is my recommendation. This will work well with 1-3/4 inch wide leaf springs. If I misunderstood and the 2 inch U-bolts were bent out to fit a 2-1/2 inch wide square axle, then...
view full answer...
- Can Axle Over Under Kit be Installed on Trailer with 2 inch Square AxlesAxle flip kits are great options for raising the suspension of a trailer. Trucks weren't as tall back then as they are now so I'm not totally surprised your trailer is sitting so nose high. We have 2 inch square U-bolt kits like part # CE23103 which you could use, but we don't have spring seats for this axle size. So you would have to remove the spring seats on your axle and weld them on the other side.
view full answer... - 2 inch Square Axle U-Bolt Kit Recommendation for a Boat TrailerThe CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles # CE23103 that you referenced would work well for you as they are designed specifically for 2 inch square trailer axles like what you have. The weight of your trailer and boat would not be an issue at all.
view full answer...
- Determining Need to Replace Trailer Suspension ComponentsIf your shackle links, shackle bolts and hangers are all in good condition - meaning no obvious deterioration, damage or evidence of holes having become egg-shaped from wear - you could re-use them. But in the scheme of things these parts' costs are fairly low so if you're going to the effort of upgrading your camper's suspension I suggest you eliminate any potential doubt/concern by replacing these items if you have any reason to think they're past their working lifespan. If you are...
view full answer... - How To Flip Square Trailer Axle For Ground ClearanceIt is possible to mount the springs on top of the axle which is called "flipping the axle". To accomplish this we normally recommend an over-under conversion however there is not one with square u-bolts available for your square axle. Instead I recommend to use CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc part # CE23103 which is galvanized for boat trailers. The U-bolts measure Inner width of 2-1/8" with a length of 4-1/2" and diameter of 1/2"....
view full answer...
- What Is The Thread Length On The CE Smith U-Bolt Kit CE23103?I had our warehouse measure the CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc # CE23103 you were looking at and the thread length is right at 2" with a diameter of 1/2" and an overall length of 4-1/2". These U-bolts are going to have the longest thread length of any of our 2-1/8" wide U-bolts. I included a video of the # CE23103 for you to take a look at.
view full answer... - Is There Way to Do Over Under Kit with 2 inch Square Axle on TrailerWe have 2 inch square U-bolt kits like part # CE23103 which you could use, but we don't have spring seats for this axle size. So you would have to remove the spring seats on your axle and weld them on the other side and you'd be have an over-under kit that fits your axle. You might have to drill spring seats in the axle.
view full answer... - Can Nylon Lock Nuts Be Used On CE Smith U-Bolt Kit CE23103?While you could physically replace the lock washer and nut included with the CE Smith U-Bolt Kit # CE23103 with nylon lock nuts, I do not recommend doing so. Nylon nuts deteriorate overtime and can back off where the lock washer and nut included will stay tight, and are also what these U-bolts were tested and designed for. I included a video of the # CE23103 for you to take a look at.
view full answer... - Available Trailer Suspension Square U-bolts KitsWe carry all sorts of parts for trailer suspensions, including U-bolts for both round and square axles of various dimensions. Our main pages for all trailer suspension parts and for U-bolt kits are linked. We have complete u-bolt/plate kits for 2-inch square axles, part # CE23103 which has an inside width of 2-1/8-inches. Depending on how you measured your u-bolt this may be the kit you need. We also sell u-bolts with hardware on their own, without plates, such as # CE15501A which is...
view full answer... - Needing U-Bolts to Fit Around 2x3 Trailer Frame MemberGiven the dimensions you provided, I believe that a u-bolt kit such as # CE23103 that's typically used to mount a 2 inch square trailer axle to the leaf spring pack would be your best bet. The kit includes two assemblies, each of which includes two 4-1/2 inch long 1/2 inch U-bolts with a 2-1/8 inch inside span, two bolt plates and the necessary nuts and lock washers. I've linked to a product description video for the U-bolt kit I recommended.
view full answer...
- Can Over Under Kit Fit 2 inch Square Axle on TrailerWe have 2 inch square U-bolt kits like part # CE23103 which you could use, but we don't have spring seats for this axle size. So you would have to remove the spring seats on your axle and weld them on the other side and you'd be have an over-under kit that fits your axle. You might have to drill spring seats in the axle.
view full answer... - Can Round Trailer Axle be Replaced with Square Trailer AxleYes, you can replace a trailer's round axle with a square axle as long as the weight capacity is appropriate. You will need a new U-bolt kit to connect the axle: 1-1/2 inch square axles # CE23102 1-3/4 inch square axles # 175130 for the U-Bolts and # 116308 for the plate 2 inch square axles # CE23103
view full answer... - Are Trailer Spring Seats Needed for Square Axles with Leaf Springs?Square axles normally don't have spring seats like a round axle but do have a hole for the leaf spring bolt to fit into. Take a look at the CE SMITH # CE33201GA-HUB for a visual. The U-bolt mounting kits will have a hole in the center for the other side of that leaf spring bolt to keep everything in line. If you have a 1-1/2 inch square axle use # CE23102. If you have a 2 inch axle use # CE23103.
view full answer...
- Replacement Trailer Leaf Springs With A Reverse C Shaped End For A Boat TrailerThe closest option we have to your "reverse C" style slipper spring would be the 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles # SP-264275, which is 26-1/4" long. I recommend taking a second look at your current leaf springs and double checking the measurements to see if this will be a compatible fit. Since you'll be replacing your leaf springs I also highly recommend replacing your U-Bolts since these tend to bend and mold to the axle and are typically pretty hard...
view full answer... - Recommended 30 Inch Slipper Springs and 2 Inch Square Axle Mounting KitFor your 2,000 lb square axle, I recommend the 3-Leaf Slipper Spring w/ Flat End for 2,900-lb Trailer Axles - 30" Long # SP-039275 which is a little stronger than your axle but won't increase your capacity of 2,000 lbs. This is a 30 inch long slipper spring with a 1.75 inch width as you stated. I recommend using the Spring-Eye Bolt with Locknut for Slipper Springs - 3-1/2" Long # 166079 with each spring. For your square axle mounting, I recommend the CE Smith U-Bolt Kit for Mounting...
view full answer... - Replacement 30" Long Slipper Spring for Boat TrailerIt sounds like you're looking for the 4-Leaf Slipper Spring w/ Flat End part # SP-040275 which is a slipper spring, 30" long x 1-3/4" wide, with four leaves. It can then be mounted on a 2" square axle with the CE Smith U-Bolt Kit part # CE23103. For the suspension bolts, we have the Spring-Eye Bolt with Locknut for Slipper Springs part # 166079.
view full answer... - Replacement Springs for Fulton Boat TrailerYour 32 inch springs were likely a little shorter than that originally and have flattened over time. It sounds like what you are looking at, the 4-Leaf Slipper Spring w/ Flat End part # SP-040275, a 30" long x 1-3/4" wide will work. If you need it, there's a U-Bolt Kit # CE23103 and for suspension bolts, the Spring-Eye Bolt with Locknut for Slipper Springs, # 166079.
view full answer...
- Replacement Leaf Springs and U-Bolt Kit for a 2005 Fabrique Dual Axle Boat TrailerIt sounds like you're needing the 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles # e48SR along with the CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles # CE23103. The leaf spring measures 26" long center eye to center eye and has a Dacromet finish which is more resistant to corrosion than the classic black powder coat finish, especially when it comes to water. Just be sure that your axles aren't rated for higher than 4,000 lbs and that your axle isn't more than 2" square...
view full answer... - Replacement Leaf Springs for Harbor Freight Folding TrailerThe best option we have for you is the 3-Leaf Double-Eye Spring part # SP-169275 with the Single-Axle Trailer Hanger Kit part # APS4. This option will replace the leaf springs and leaf spring hanger brackets which is needed because the new double eye leaf springs are 1-3/4" wide and the old slipper springs are 2" wide not to mention the length discrepancy and leaf spring hanger bracket height. The CE Smith U-Bolt Kit for Mounting part # CE23102 or part # CE23103 can then be used to complete...
view full answer... - Recommended Trailer Components Between Frame And 2 Inch Square Axle Of Small TrailerFor your trailer with GVWR of 780 lbs, the best option we have for your leaf springs is the 3-Leaf Double-Eye Spring for 2,000-lb Trailer Axles - 20-3/8" Long # SP-169275 you mentioned but they are definitely overkill. To mount your springs to your frame, I recommend the Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 7/8" Rear # APS1 which will need to be welded in place. To mount your 2 inch square axle, I recommend the CE Smith U-Bolt Kit for Mounting 2" Square...
view full answer... - Replacing Old Slipper Springs and U-BoltsThough the leaf springs are rusty, they do not seem to look pitted, so they should still be fine. It wouldn't hurt to clean them off with WD-40 or a rust remover to make sure they don't get worse. If you did want to replace them though, you could go with something like the Universal Group # SP-040275. As I couldn't tell 100% how wide the leaf spring is, this is a 1 3/4 wide one. It is also much longer with the overall length of 30 inches, so the rear hanger would most likely need to be...
view full answer...
- Replacement Suspension for Tandem Square Axle Venture Boat TrailerI reached out to the manufacturer but they are not currently able to look up VIN numbers for part assistance. I was able to find on their website that the square tube axles are either 2000 lbs capacity each or the more common 3,500 lbs capacity each. Most of their trailers utilize the 3,500 lb axles and I believe that is the case for all their tandem axle trailers. For your trailer you can use the following: -Tandem-Axle Trailer Hanger Kit for Double Eye Springs - 3-3/4" Tall Front/Center/Rear...
view full answer... - Hanger Kit Recommendation for Slipper Leaf Spring # SP-264275Sounds like what you are in need of is a single axle hanger kit for the leaf spring part # SP-264275 that you mentioned. For that you'd only need the # APS3SE and you'd be set. This gives you the hangers for the front and rear for the spring as well as the correct nut and bolt to hold it all. For a u-bolt kit you'd then want the part # CE23103 for the axles.
view full answer... - My 1971 Ideal Camper Has a Different Leaf Spring On One Wheel and Random Hardware In SuspensionWith the age of your 1971 Ideal 22' Camper I am going to recommend changing out all the suspension components. I happened to notice some of the hardware was also replaced at some time as well and it does not look like they used the correct parts either. For the Leaf Springs you will need to jack up the camper to remove as much weight from the suspension as possible. You will need to measure the spring in a few places to be able to ensure that you find the correct replacements. I have...
view full answer...
Do you have a question about this Trailer Leaf Spring Suspension?
Why etrailer.com?
At etrailer.com we guarantee:Real product know-how.
We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.Most detailed, accurate trailer leaf spring suspension information available.
Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.Installations, made easy.
We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.Fast shipping.
Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.Personalized service for life.
We provide one-on-one, personalized service from the ordering process through the life of your product.Trusted since 1946.
We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.Returns Policy
Need to return an item? No problem. Please read our Returns Policy for more information.
Info for this part was:
Edited by:
Lindsey S
Expert Research:
Jameson C
Expert Research:
Adam R
Installed by:
Cole B
Updated by:
Wilson B
Written by:
Amanda M
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Product Experts Available Now!
Call 1-800-940-8924
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.