U-Bolt Plate for 1-1/2" Square Trailer Axles with 1-3/4" Wide Springs
(80 reviews)
Price: $14.02
In Stock
U-Bolt Plate for 1-1/2" Square Trailer Axles with 1-3/4" Wide Springs
Item # 115983
Retail:$15.19
Our Price: $14.02
You Save: 8%
In Stock
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- All Info
- Reviews (80)
- Q & A (0)
- Videos (1)
- Photos
Redline Trailer Leaf Spring Suspension - 115983
- U-Bolt Plates
- Camper
- Car Hauler
- Utility Trailer
- Square Axle - 1-1/2 Inch
- 2000 lbs
- 1/2 Inch Diameter
- Redline
Plate uses 1/2" diameter U-bolts to attach your square, 1-1/2" wide trailer axle to your 1-3/4" wide leaf springs.
Features:
- Used with U-bolts to secure axle to leaf springs, which are mounted to the trailer frame
- Attaches with (2) 1/2" diameter, square U-bolts (sold separately)
- Fits square trailer axles that are 1-1/2" wide
- Works with 1-3/4" wide leaf springs
Specs:
- Dimensions: 5" long x 3-1/2" wide
- Diameter of mounting holes: 1/2"
115983 U-Bolt Square Axle Plate - 1-3/4" Springs - 1-1/2" Wide Axle
Video of U-Bolt Plate for 1-1/2" Square Trailer Axles with 1-3/4" Wide Springs
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Redline Trailer Suspension 115983 Review
Today we will be reviewing part number 115983. This is Redline's ubolt plate from 1 1/2" squared trailer axles with 1 3/4" wide springs. This is used with ubolts to secure the axle to the lead springs which are mounted to the trailer frame. It's going to attach with 2 1/2" diameter square ubolts. They are going to be sold separately. The 1/2" diameter is important because you want to make sure that the ubolt goes through the 1/2" diameter hole.
The 4 holes along the corners are going to be the same in diameter so you will need to get some ubolts. I'm going to recommend part number Sp01-120. Those ubolts are going to come with the nuts to secure them on the other side and it's going to fit this mounting plate perfectly. This does fit square trailer axles that are 1 1/2" wide. It will work with 1 3/4" wide lead springs.The overall dimensions of the mounting plate is going to give us a measurement of 5 1/4" x 3 1/2". That's going to do it for today's review of part number 115983.
This is Redline's ubolt plate from 1 1/2" squared trailer axles with 1 3/4" wide springs. .
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
- Wrong item was ordered
- Product did not meet expectations
Customer Reviews
U-Bolt Plate for 1-1/2" Square Trailer Axles with 1-3/4" Wide Springs - 115983
Average Customer Rating: 4.8 out of 5 stars (80 Customer Reviews)
Plate uses 1/2" diameter U-bolts to attach your square, 1-1/2" wide trailer axle to your 1-3/4" wide leaf springs.by: Kenneth05/03/2019
I purchased this plate to upgrade the suspension on my trailer. I would get a a lot of trailer sway when I was towing my jet ski trailer. I bought the trailer used and never really looked at the springs. Unfortunately for me, There was nothing but one U bolt strapped diagonally across the spring. I'm no suspension expert but I knew this could NOT be safe. I did extensive research on trailer suspension. It was difficult to find parts for a 11/2 inch square axle. It was until I came across etrailer webpage. They had everything I required to upgrade and make my trailer safe to operate on the road. It was actually criminal what the person did to attach the original spring. I am greatful nothing ever happened while towing. Now with the new parts installed, I feel a lot better and my trailer does not sway anymore.
I will definitely purchase my trailer needs from etrailer from now on. The pictures and videos make finding what I needed so much easier. The complete transaction from order to delivery was extremely efficient and the customer service is absolutely outstanding!
by: John 02/08/2024
Good quality product would purchase aga in
by: Gary 02/10/2024
Efficient and skilled service.....a rarity today.
by: Richard H.04/16/2011
Much heavier than what I replaced on my little trailer. Thank you for your fast shipping and follow-up call.
by: Brian G.05/07/2017
The most difficult part was tightening the nuts to the point that the head of the shackle bolt was flush against the shackles and hangers. Afterward, I loosened the nuts a little. But, I don't know how much to loosen them.
by: Robert11/22/2021
.I ordered 4 square u-bolts and 2 plates as part of replacing the axel on a 1977 small boat trailer. Needed longer u-bolts than I fond any place else, but trailer had ones that could work. Ideally would have preferred stainless or at least galvanized for use in salt water, but at least could get trailer back on the road. 1 of the 4 u-bolts I ordered was narrower than the rest, had to be forced on at risk of damaging the threads. The center hole in the plate was too small to fit over the top bolt head on the leaf spring; so had to resort to under slung install - which was not the original trailer setup.
by: Robert03/08/2018
This part was very hard to find any where, but as always, etrailer came thru. The part went on an old Gamefisher trailer and it was a perfect fit. Now I'll be able to complete my project and get the trailer back on the road. The price was very good and finding the part on etrailer was very easy.
Robert
3/8/2019
Its been a year and the parts are great. No problems what so ever. Thanks etrailer for having hard to find parts and great ones too.
by: Shawn10/21/2016
Well I can't believe it's really been a year since I purchased all the parts from Etrailer to rebuild my jon boat trailer. I bought this tilt trailer on craigslist and well let's just say needed some MAJOR TLC. From the roller brackets, fenders, tires/wheels, hitch coupler, winch, etc.. All the parts have held up extremely well and I am VERY happy with not only the quality of the parts but the customer service as well. This is my "GOTO" place to buy parts for all 3 of my trailers!!
by: randy b.02/18/2014
I purchased the 3000# axle springs and all mounting hardware to replace the old ones on my 1963 travel trailer. My trailer no longer leans to the left and goes down the road better than new. I should have done it many year ago. I received my package on time and installation was easy and fit perfect. Thanks Bridget
by: William 07/16/2020
The above product I purchased from etrailer was perfectly described and exactly what I was looking for. it was said to be for a 1-1/2" Square Axle and 1-3/4" wide Springs which was exactly what I was looking for. I haven't installed them yet, but have dry fitted them if you will and should work out perfectly Thank You very much!
by: Pat 07/25/2022
fits great I wish there was a galvanized version, trailer sits by saltwater bay. I coated them with cold galvanizing spray paint see how long it lasts.
by: Charlie C09/18/2016
All of the springs and hangers were quality material. These parts were a lot heavy duty than I was expecting, and I was glad of that. I now have a light weight but strong boat trailer.
by: Steve10/09/2019
100% impressed with etrailer. My customer rep, Diana, was very courteous, knowledgeable, and friendly. I placed my order on Monday and was told that my shipment would arrive on Thursday. About ten minutes later, I received an email stating that my order had shipped! I just received another email that my package has been delivered - a day early. I was able to track the package from the etrailer website. I just want to say thank you for the unexpected, exceptional service from everyone at etrailer. I look forward to placing more orders in the near future. Thanks again
by: Anthony 09/15/2021
Quality product, the only issue was the square U bolts didn’t line up exactly and I had to spread them open fit the hole pattern. But no big deal. Finding parts for replace the previous one was no easy task but you guys had everything. Thank you. On shipping however it seem as if the package only took 3 days to get to Vegas but took another 4 days to go 30 miles to me. I know it’s not your fault but thought I’d mention it anyways. I should have the parts installed soon and will update with photos of the installation.
by: Felton04/08/2023
Good product. Thanks for the fast ship ping!
by: Eric03/27/2018
Worked great. I used them to construct a kayak rack onto my trailer.
by: Joseph09/26/2011
Exactly what I needed, very strong piece, I do wish it had been galvanized, but still great. Delivered fast with no problems, etrailer.com as always is great.
by: Chim Chim07/19/2011
This plate changed my life.
My trailer is no longer popping off it's axle, at every inopportune moment.
Now, thanks to this wondrous device, I have a way of attaching the wheels, to the rest of the frame.
Why hasn't anyone ever thought of this before?
Thank you, and keep up the good work.
by: Thomas11/29/2019
Great product but UPS did a terrible job on the delivery. MO to CA in three days and the product was at the UPS distribution center for four days (10 miles from my home) before being delivered.
by: Paul C.11/20/2013
Heavy duty compared to the original U-bolt plate that came off this old trailer. U-Bolts slid right in without the use of a hammer. Check out my review about the 1 1/2 U bolts though.
by: Dan05/31/2016
Heavy duty and a good replacement for my 40 year old rotting u-bolt plates.
by: William02/15/2013
I was pleasantly surprised at the quality of the U-bolts and accurate measurements of the U-bolt plates and bolts. This made the installation a breeze.
Thanks
by: Jack W.09/26/2016
Great product, price and shipping. I would recommend to anyone. Used these after flipping an axle from inside springs to under. Worked great.
by: Patrick n 03/02/2017
Great products the u bolts were just what I needed and I could have not ask for better service products I will always be a customer for any need that y'all can for fill and the videos really helped knowing what I needed and if it was going to fit my application thanks again for being a great company
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Show More Reviews
See what our Experts say about this Redline Trailer Leaf Spring Suspension
- U-Bolts And Mounting Plates For A 1-1/2" Square Trailer Axle After a bit of research, I have determined that item # 49133 is a 1-1/2" square trailer axle. The correct u-bolts and mounting brackets for this axle are the 1-1/2" Square Trailer U-Bolts part # SP01-120 and the U-Bolt Plate for 1-1/2" Square Trailer Axles with 1-3/4" Wide Springs part # 115983. I have attached a video review for both of these products for you.
view full answer... - Orientation of U-Bolt for Installing Leaf Springs on a TrailerThe angled portion of the flanges on the part # 115983 should run front to back on your trailer and should angle away from your leaf spring. See the attached picture to see exactly how they should install. Typically there are bushings installed in the hangers and leaf springs. We offer nylon and bronze ones that would work if you needed them. I attached a link to a page that has all the different ones we offer in all of the different sizes available.
view full answer...
- Difficulty Installing Trailer Leaf Spring with Redline U-Bolt Plate # 115983Its difficult to say what the issue is with your installation of trailer leaf springs with Redline U-Bolt Plate # 115983. If old and new parts are mixed there can be fit issues since old, worn parts may not have the same exact dimensions as they did when new. Leaf springs do stretch and elongate after years in service. A worn spring that measures, for example, 27-inches long from eye to eye may not have been a 27-inch spring when installed initially. I suggest you submit a photo and more...
view full answer... - Thickness of the U Bolt Plate # 115983I went out into our warehouse and measured the thickness of the U-Bolt Plate # 115983 and found that it is 1/4 of inch thick.
view full answer... - How to Determine the Correct Leaf Springs and Parts for Suspension 1956 Shasta CamperTo determine the correct parts you need to replace the springs on your trailer you will need to do some measuring and find the GVRW, Gross Vehicle Weight Rating, of your trailer. Measure the distance between the center of each eye on your trailers existing springs. The new springs you select should then match 1/2 of the trailer GVWR and the distance of the measurement you take. If you find that the measurement on your springs is 1/2 to 1 inch longer than the measurement of a spring that...
view full answer... - Replacement U-Bolt Plate for a Trailer with 2 Inch Square AxleFor a 2 inch square axle you are going to want u-bolt plate # TRTP200175. The hole spacing on center is 2-5/8 inches by 2-3/8 inches. For matching u-bolts go with # SP01-160. They have a 9/16 inch diameter. I have included a link to a video review for you for the u-bolts. It does sound like you will need to replace some existing components if they do not match up. I do not recommend modifying anything because that can weaken those items. Any welding should be performed by a qualified professiona...
view full answer... - Will 1-3/4 Inch Wide Leaf Springs Fit a U-Bolt Plate for a 1-1/2 Inch Wide Square AxleRegardless of the axle diameter, generally most modern double-eye springs are 1-3/4 inches wide. U-bolt plate # 115983 works with u-bolts # SP01-120 which have a 1-1/2 inch width to fit around the axle. The u-bolt plate will set below the the leaf spring stack, the u-bolts will go around the axle and through the u-bolt plate and then bolted on. Take a look at the FAQ on double-eye suspension I have linked for you.
view full answer... - How to Increase Ground Clearance with Slipper Springs. I can help you figure out how to get more ground clearance from your trailer. All of our over under kits have only been tested on a double-eye spring setup, these are secured on both ends unlike slipper springs which are not. I would worry that it could become unsafe since the weight of the trailer was pulling on the axle and once you switch the location of it all the weight will now be pushing down on the rectangular axle. While we don't have a specific over under kit for rectangular...
view full answer... - Center Hole of U-Bolt Plate Isn't Large Enough TroubleshootingIf the center hole of your U-bolt plate isn't large enough for the nut on your leaf spring to fit flush you would want to drill it out large enough so that it will fit properly.
view full answer...
- U-Bolt Mounting Plate to Use with 1-1/2 inch U-Bolts # 1753223The u-bolt plate part # 115983 is the correct size for use with the 1-1/2 inch u-bolts part # 1753223.
view full answer... - Replacement U-Bolt Plate and Bolts for 1-1/2 Square AxleThe smallest square axle U-bolt kit and bolt plate is for 1-1/2 inch axles. For that you would want the part # SP01-120 for the U-bolts and part # 115983 for the plate. You might double check the axle measurements, they might actually be 1-1/2 inch square axles.
view full answer... - Recommended U-Bolts And Plate For A 1-1/2" Wide Square AxleHey Roy, The only U-bolt kit we currently only offer for 1-1/2" square axles is part # CE23102, which only has a 3-3/8" length so it likely wouldn't be the best option for you. Instead you'll want to order the 1-1/2" Square Trailer U-Bolts # SP01-120 and two of the U-Bolt Plate # 115983 to mount your axle to the leaf springs # SP-210275.
view full answer... - U-Bolts and U-Bolt Plate Recommendation for Installing Leaf Springs on a 1-1/2 in Square AxleIf what you really need is a new axle you can go to a local trailer shop to you and have them custom order you the exact specs you need for a trailer axle. But to attach springs to your 1-1/2 inch square axle you would want the mount plate part # 115983 and then for U-bolts part # Sp01-120. I attached review videos for both products.
view full answer...
- Availability of U-Bolt that Fits 1-1/2 inch Square AxleThe closest option we have is the part # SP01-120 which is U-bolt that is 1-1/2 inches wide, has a diameter of 1/2 inch, and has a length of 5 inches.
view full answer...
Do you have a question about this Trailer Leaf Spring Suspension?
Info for this part was:
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Video by:
Kathleen M
Installed by:
Cole B
Updated by:
Wilson B
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Jenny N.
11/23/2021
I will have our customer service team reach out to you. I would recommend using a corrosion resistant spray with the u bolts and plate. When using in salt water then rinsing off the u bolts and plates with freshwater will help to length the life of the parts.