A loose axle can throw your whole setup off. This formed U-bolt plate gives it a firm hold, securing a 3" diameter axle to a 1-3/4" wide leaf spring. It works as a key part of the suspension system, using (2) 1/2" diameter U-bolts (sold separately) to clamp everything tight so the connection stays solid mile after mile.
Road spray and salt are hard on metal, but this plate is built for it. The galvanized steel is hot-dipped in zinc after forming, creating a coating that’s about 3 to 5 mil thick. That full-coverage layer resists rust and corrosion so the plate holds strong and keeps looking good even after years around water and rough weather.
No guesswork needed when lining it up. The plate measures 5-3/8" long overall with 3-5/8" between hole centers, and 3-3/4" wide with 2-3/8" between hole centers. The bolt holes are 9/16" diameter to match standard suspension hardware. Everything lines up cleanly so your axle and springs mount square and stay aligned.
Whether it’s carrying heavy gear or just logging lots of miles, this plate is built for duty. It’s made for round 3" axles in the 5,200 lb to 7,000 lb range, giving you the solid strength needed for heavy loads on boat or snowmobile trailers that see real-world use.

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to be taking a look at the CE Smith U-Bolt Plate for Trailer Suspension Systems. The U-Bolt plate is going to help secure a three inch diameter axle to a one and three quarter inch wide leash frame. We can tell that it's designed for a one and three quarter inch wide leash spring by taking a measurement. The distance that we have between these holes right here is going to be the same as the distance between these two holes. That's where we're going to get that one and three quarter inch measurement from. This does require two half inch diameter U-Bolts. U-Bolts are sold separately but if you're in need of those, you can find them here at etrailer.com.
The four outer holes are designed to accept half inch diameter bolts. The unit's made from a galvanized steel. It's very strong and durable as well as corrosion resistant. It's going to be great for use on boat trailers or any application that's exposed to moisture. This product is made in the USA. The diameter of the center hole is going to measure around five eighths of an inch.
The overall length that we have, measuring from outer edge to outer edge. That's going to give a measurement, looks to be about five and three eighths of an inch. The distance that we have between these two holes, center on center. That's going to measure three and five eighths of an inch. The overall width from outer edge to outer edge.
That's going to give a measurement of three and three quarters and then the distance that we have between these two holes, center on center. That's going to give a measurement of . looks to measure about two and three eighths of an inch. That's going to do it for today's look at CE Smith U-Bolt Plate for Trailer Suspension Systems.
Customer Satisfaction Score:
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Ratings & Reviews
Exactly what I needed, couldn’t find it anywhere else. Super fast transaction and shipping
I’ve placed a lot of orders , everything is always as advertised and I can’t believe how fast they ship it
great peoduct
Good quality and good price
perfect fit and got a day earlier than expected
Great delivery time and the product is heavy steel like I needed.
Very pleased with product and delivery.
did what I needed it to do
Great quality. Priced high for what it is.
These parts performed as expected. Quality parts
No matter how obscure an item seems to be , I can usually find it at etrailer. Thank you!
Good product.
Fit perfectly and as advertised. Replaced my stock leaf spring plates on fifth wheel RV which were too wide to accept the SumoSprings trailer helper springs. Easy install.
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