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Mount your round, 2-3/8" diameter 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:
Specs:
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Speaker 1: Today, we'll be having a look at the CE Smith line of U-bolt mounting kits for mounting round trailer axles. Here's what our kit comes with. It's everything you need for replacing the U-bolts on a single axle on your trailer. We have 4 new U-bolts, you'll have 2 per side; 2 new plates, 1 per side; 8 new lock washers, you'll be using 4 for each side of the trailer; and 8 new nuts, again 4 for each side of the trailer.You can see how well our U-bolts grip around the contours of our axle. This'll keep the axle firmly attached to our leaf springs, so we don't have to worry about it slipping and sliding.Now because we have the zinc and the galvanized finish on our plate and our hardware, this will better protect them from corrosion from the elements, especially salt spray. It's not an issue if you decide to use them on a boat trailer such as this one.Now many of our customers have had to make a second phone call or send an email to us after they bought a new axle for their trailer because they found, once they tried to remove the old one or put the new one on, that they couldn't get their factory U-bolts off.
They had to cut them off, and now they're searching for a replacement. This kit will be a perfect solution for this problem here.Now many of our customers compared these to the Redline line of U-bolt kits. Now the main difference you're going to see between this one and those is that those do not have the galvanized or the zinc finish on the plates or the hardware, which will cause them to rust out faster.As you can see, we already have our new axle sitting on top of our leaf springs. Now this kit could work for an axle that sits on top or below your leaf springs. It works for both applications.
You don't need to worry if yours resides below, you can still use this kit for that.We'll start by taking our new U-bolts and dropping them over our axle on either side of our leaf spring. Now we'll take our new plate. We want to make sure that this flange right here faces down, this hole here in the center lines up with the alignment pin on our leaf spring, and we'll insert our U-bolts through the holes. Place on our lock washers, and we'll put that on our nuts.Now we can start to tighten our hardware, making sure we tighten them evenly as possible. Now we'll torque our hardware again, making sure we alternate to ensure that we're doing it as evenly as possible.And that completes our look at the CE Smith line of U-bolt kits for mounting round trailer axles..
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Arrived very quickly. Have yet to insta ll
One of the 2 packages was missing 7 of the crush washers and 1 of the nuts for the u-bolts
These along with my moryhde greaseable shackles and new leaf springs have been excellent. Last year I kept blowing out tires left and right and I believe it wad due to worn out suspension parts on my bear boat trailer.
I bought a trailer that someone had reversed the axle and did some “REDNECK ENGINEERING “on. I put the axle back where it was supposed to be by using U bolts I had ordered. Everything fit perfect. Now trailer is back like it was supposed to be, thanks to etrailer and Jane. She was so helpful and follow up on my order was exceptional. I know I can always count on etrailer to get what I need at a fair price. THANKS
I upgraded from a single leaf 3500lb axle spring to a 4 leaf 4000lb axle spring and also upgraded the U-bolts. The upgrade went very well. Everything fit perfect. The trailer tire to fender clearance was only 1.5 inches (at best) before the upgrade, now it is 3.5 inches. This will help the tire from rubbing the fender on the rough and bumpy road that we have in the state.
Nice Zinc coating
They may be of proper quality, but they did not fit my 3500lb axel and cost me $[XX] dollars to ship back, I have now purchased them local.
Customer [service] was great in helping me identify the correct parts for my car hauler. Ordered on Monday, package arrived Wednesday w free shipping. HUGE difference in ride quality!
Great! Thanks. John
They look great, where is my leaf spring i ordered?
Every thig fit perfect
Michael
6/25/2026
Its working great, I just finished checking the undercarriage in preparation for our alaska trip and everything is as it should be, ill be replacing the rest of the springs when we get back
Lazer S.
6/25/2026
Heavy duty hardware, looking forward to installing it.
junk
bought for my 3500 pound single axle TT
1st trip already flat
Trailer weighed and under limits
Good quality and a perfect match to the factory Dexter axle parts on my enclosed trailer. I purchased these as "just in case" spare parts as I plan on taking a 12500-mile trip this summer.
Haven't installed as of yet but the customer service was excellent Fast shipping and good company follow up. Carter put all my questions and research at ease
I had called other suppliers, not answering phone or had no clue / answers to my questions
worked out great
great price and fast shipping
Thanks
Brooke M.
5/2/2025
It's looking good!
etrailer has become my source for almost everything for repairing or upgrading our trailer, the replacement of broken leaf springs being the most recent project.
If you have questions about the correct part for your project, search the customer service frequently asked questions. There is a lot of helpful information in there that you may not find on other websites. You can also contact customer service if you don't find a useful answer.
Steve
1/10/2024
Its been a year since the leaf spring replacement and there have been no problems.
This was a good kit, however, it looked like an open box item considering the tape around the edges and also had an extra nut (bigger) than the rest. Everything was accounted for though. Product was excellent and i am glad everything was in it to finish the work.
Good product, but no torque spec listed.
Easy installation! Effectively dampens shock from potholes and rough roads. So far these are amazing and I feel it will help protect my rig for the long journey. Thanks.
We purchased these parts for a custom build trailer for hauling heavy tool boxes over steep grades. Since completion of the build about a year ago, we have been using it and put a lot of miles on it. The hydraulic surge brake system makes it worry free. We can tow it behind different vehicles of differing weights and wheel bases and not worry about setting trailer braking, it is very nice. We will continue to use E-trailer for our trailer needs.
Went from a bad leaf setup to fixing the problem. Included bronze bushings bolts and new shackles from a previous order. Rig sits real nice now. Very pleased. !!
Excellent service and fast delivery. I would recommend this site to anyone looking for trailer parts and supplies.
New leaf springs, heavy duty Dexter hardware and U-bolts. Everything fit like a charm and fairly easy to install. Also, etrailer support was awesome! Super helpful.
Gwendolyn Y.
3/4/2025
Hey Tim. The new suspension looks great on your trailer, the old ones definitely has seen some better days. What are you hauling on your trailer?
Overall great experience purchasing and installing new leaf springs, shackle straps and u bolts on my travel trailer. Thanks etrailer!
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Brooke M.
4/27/2024
You really know your way around a trailer! It looks great! What are you hauling? Im moving in a few weeks. Care to swing by and give me a hand? Just kidding.