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A loose or shifting axle can ruin your ride quality. This CE Smith U-bolt plate gives you a solid, reliable clamp point for your axle and springs. It’s built to work with 3" diameter round axles and 1-3/4" wide leaf springs, holding everything in place so your suspension stays tight and tracks straight mile after mile.
Getting your suspension hardware lined up cleanly makes the job go faster. This plate is drilled for 9/16" diameter U-bolts (sold separately), giving you the right fit without guesswork. The bolt holes are spaced 3-1/16" apart from inside edge to inside edge, so the U-bolts slide in perfectly and clamp down evenly across the axle.
Thin plates can bend under load, but this one doesn’t. The 7/32" thick steel tie plate adds strength to your axle connection, keeping the assembly rigid and balanced. At 5-7/8" long and 3-3/4" wide overall, it spreads the clamping force evenly across the leaf springs for a secure, lasting hold.
Whether you’re replacing a damaged plate or setting up a custom suspension, this single U-bolt plate makes it easy. Just match it to your 3" round axle and 1-3/4" springs, add two 9/16" U-bolts, and you’re back on the road with a clean, sturdy connection.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, everybody. Andy here with etrailer.com. Let's take a quick look at this U-bolt plate. Now this U-bolt plate uses 9-16 of an inch diameter U-bolts that are sold separately from this plate to attach your 3-inch-in-diameter trailer axle to your 1-3/4-inch wide leaf springs. So let me go ahead and retrieve my ruler here, give you some measurements that might prove helpful for you. So looking at the overall length, we're sitting right at 5-7/8 inches long, the overall width is gonna be 3-3/4 inches wide, and then this might be a little trickier, I'm gonna come around the table here so I can see as well, but I first want to give you the measurement of the length of the holes, and I'm gonna be measuring this in between the holes rather than on center.
So in between the holes it looks like we're sitting pretty close to 3-1/16 inches, and then looking at the width in between those holes, finding that up there, we're gonna call it right at 1-11/16 inches, so hopefully that's visible to you and helpful to you. Again, the bolt-hole diameter is 9/16 of an inch, but if you happen to have any further questions about this U-bolt plate or any of the other U-bolt plates that we carry, or the 9/16-inch diameter U-bolts that this uses, don't hesitate to reach back out to us. We do wanna be sure that you're getting exactly what you want and need. Well, that's gonna wrap up our look today. I do hope that it was helpful for you.
Again, my name is Andy. Thank you for joining me.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews

Joel
3/16/2025
Still working just fine.


Brad G.
8/16/2021
Great!

Gregory
7/14/2022
Still working good. I would buy again.
Info for this part was:
At etrailer 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.





Heather A.
4/11/2026
Thank you for the kind words! Your setup looks great. What kind of trailer are you building?