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Brake Mounting Flange for 2-3/8" Round Axle
Redline

Brake Mounting Flange for 2-3/8" Round Axle

Part Number: 4-35
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$24.58
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Trailer Brake Mounting Flange - gets welded to the end of the axle beam to support the brake assembly. 1-800-940-8924 to order Redline accessories and parts part number 4-35 or order online at etrailer.com. Free expert support on all Redline products. Great prices and Fastest Shipping for Brake Mounting Flange for 2-3/8" Round Axle. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (24)
  • Q & A (0)
  • Videos (1)
  • Photos

Redline Accessories and Parts - 4-35

  • Trailer Brakes
  • Disc Brakes
  • Electric Drum Brakes
  • Hydraulic Drum Brakes
  • Brake Mounting Flange
  • Redline
  • 10 Inch
  • 2-3/8 Inch Diameter Axle

Trailer Brake Mounting Flange - gets welded to the end of the axle beam to support the brake assembly.


Features:

  • For Use with 10" Brake Assembly
  • Center hole diameter: 2.27"
  • 4 Bolt Holes are 2-7/8" a part (center to center)
  • Flange thickness: 1/4"
  • Brake mount flange gets welded to the end of the axle to provide a secure mounting place for brake assemblies


4-35 Brake Mounting Flange for 2-3/8" Round Axle




California residents: click here


Video of Brake Mounting Flange for 2-3/8" Round Axle

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Comprehensive Review: Brake Mounting Flange for 2-3/8" Round Axle

Today we're going to be taking a look at a brake mounting flange for a 2 3/8" round axle. This trailer brake mounting flange gets welded to the end of the axle beam to provide a secure mounting place and support for the brake assembly. This part number includes one brake mounting flange. It's for use with a 10" brake assembly. The center hole diameter, that pilot hole. That's going to give us a diameter of 2.27".

You can see that's going to contain four bolt holes. These are going to be separated apart from one another on center by 2 7/8", and that's going to be the same separation for each one. That's a square design. It's a steel construction that has a thickness of about 1/4". Overall measurements going edge to edge this direction. It's going to measure 3 3/4", and again it's a square design so it's going to measure the same going in this direction, 3 3/4".

That's going to do it for today's look at the brake mounting flange for a 2 3/8" round axle.

Customer Satisfaction Score:

Ratings & Reviews

4.8

24 reviews
Trailer Brake Mounting Flange - gets welded to the end of the axle beam to support the brake assembly.

by:

it works



by:

I wanted to install brakes on my enclosed trailer, but the axle didn't have the flange to mount the backing plates. These flanges had the correct bolt pattern for the brake backing plates and the correct center hole to slide over the machined area on the 3500 lb axle, for an easy weld-on upgrade.

Chuck profile picture

Chuck

3/10/2025

Never had another thought about these flanges, as the trailer brakes performed flawlessly!

JesseM profile picture
Etrailer Expert

Jesse M.

3/10/2025

@Chuck Hey Chuck, thanks for sharing. Thats exactly how it should be I suppose. Glad to hear everything is working well. Come back anytime you need anything!


by:

Service was good and shipment was rite on time. One of the grease seals was bent in the shipment but I think it will work time will only tell. I was hoping that Dexter being made in America that they would use American made bearing also, they don't . The only other thing was I Thought I was getting bearing buddies but after looking back at the description I see that it wasn't , that is my mistake for not knowing better. I would have saved 18 dollars being I used my old grease caps instead. But over all I will use this company again great service. Keep up the great work.



by:

Once I received this brake flange, it turn out great.
Remember to get the large opening for 3500# axles.



by:

Every part I've gotten from eTrailer.com has been with perfectly sound advice in choice and application. You are most certainly the best place to go for all of one's needs.



by:

fits right on a heavy duty spindle ready to weld on for a brake flange. Good solid metal.



by:

Product arrived in excellent condition and clean. I was eligible for free shipping. Order was placed on sunday afternoon and received north of NY state on next friday. I would definitely consider buying from etrailer again.



by:

Good source for all trailer parts. Quick shipping.



by:

The package arrived today, look great! (Brake flanges)
I ordered around 1:00 pm and received a email around 5:00 pm stating that they have shipped, could not believe this, but they are here.
Thanks for all the promptness!!
Merv L.



by:

Perfect fit and easy install now I have brakes on my trailer!



by:

Flange was a perfect fit, quality material, would buy again if needed.



by:

product works great still in like new condition ! A++++++



by:

great products, project went well.



by:

work very well for the job thanks



by:

not sure decided not to use it



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Worked Awesome!!!



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See what our Experts say about this Redline Accessories and Parts

  • Can Brakes be Added to 3,500 Pound Dexter Trailer Axle
    Yes, brakes can be added to your trailer and I've linked an article to help with the parts you'll need. The first thing you'll need is the brake mounting flanges welded to the axle, like you mentioned. The correct flange is # 4-35 however these need to be welded by a qualified welder because the mounting flange must be welded square and concentric. This is generally done using a jig at a trailer shop. I've linked our selection of hub and drum assemblies for 3,500 pound axles. You'll...
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  • Parts Needed to Add Electric Brakes to Trailer with 3,500 Pound Axles
    To answer your last question first the trailer has been towed with no brakes so even if you only add brakes to one axle it will be an improvement. Based on your measurements I'm thinking your inner bearings are # L68149 (1.378 inch diameter) and outer bearings are # L44649 (1.063 inch diameter). Very close to what you have but you'll want to double check like you mentioned. If these bearings are correct the hub and drum assembly for your trailer is # AKHD-545-35-K. If they're not the...
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  • Brake Mounting Flange Recommendation for Dexter 3,500 lb Axle
    Looks like you have a 3,500 lb Dexter axle without brake flanges. The correct brake flanges for that style of axle is the part # 4-35. Welding a mounting flange, possible item # 4-35, is a very precise installation. The flanges need to be installed square and concentric to the hub and drum assembly and each other. If the flange is installed incorrectly rapid brake lining wear, improper braking, trailer dog legging, bearing failure, rapid tire wear and, worst of all, weakening of the axle...
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  • Determining Correct Parts To Add Electric Brakes To 6.5x16 Dual Axle Landscape Trailer
    I would be more than happy to help you find the correct parts to add electric brakes to you 6.5x16 Landscape trailer but you will need to find out a few measurements of your spindles first. Different weight capacity axles will require different bearings, hubs, and brake components. To determine which components you will need you will need to take a few measurements. First you will need to know what inner and outer bearings your trailer uses, as well as which grease seal. The easiest...
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  • Can Electric Brakes Be Installed On One of The 3,500-Lb Axles of a Tandem Axle Utility Trailer
    I would first check with the laws in your state as far as how many brakes are required for the gross vehicle weight rating (GVWR) of your tandem axle trailer. Some states require brakes on both axles of a tandem axle trailer. If brakes are allowed on one axle I would recommend to put them on the front axle since that is the axle that will be bearing the most weight of the trailer. Also, when stopping the trailer, the weight of the trailer will be shifting to the front axle more than the...
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  • Complete Hydraulic Drum Brake Kit for Boat Trailer With 3,500 lb Axles
    I would need some more information before setting you up. What is your axle's weight capacity? Do you have an idler hub or hub and drum? What size are your wheels? I'm going to send you a link to a couple of help articles on what you'll need to add brakes and if you can get back to me with more info I'd be more than happy to help.
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  • Galvanized Idler Hub That Fits Square #84 Spindle
    Let's start with the spindle and hub you asked about, and they are indeed compatible. Reason why is this spindle accepts hubs with inner bearing L68149 and outer bearing L44649, which is exactly what the Easy Grease hub you mentioned uses, so the two will work together: - Square #84 Spindle for 3,500-lb Trailer Axles # TRU47FR - Easy Grease Trailer Idler Hub Assembly for 3.5K Axles - 5 on 4-1/2 - Galvanized # AKIHUB-545-35-G-EZ-K And as for the hanger kit and leaf springs you mentioned,...
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  • Parts Needed to Add Brakes to 2018 Carry-On Trailer
    Based on what I have found, the 3K7258 axle is a standard 3,500 lb axle. To add brakes to your Carry-On trailer you will need the following: -Hub and Drum Assemblies: Easy Grease Trailer Hub and Drum Assembly for 3.5K Axles # AKHD-545-35-EZ-K -Brake Assemblies: Electric Trailer Brake Kit - Self-Adjusting # AKEBRK-35-SA -7-Way Wiring: Hopkins 7-Way Molded Trailer Wire Connector # HM20048 (If you want a junction box use # 3375601101) -Breakaway Kit: Hopkins Engager Push-To-Test Trailer...
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  • Parts Needed to add Electric Drum Trailer Brakes to 16-Foot Casita
    What kind of brakes do you have - hydraulic, electric, electric over hydraulic? What kind of wiring harness do you have on your Highlander - 4-way, 7-way? If you could let me know the exact specifics of your setup I'd be happy to let you know how to proceed.
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  • Can a Hayes 10 x 1 5/8" Braking Assembly W/ No Mounting Flange Be Converted to a Standard Flange
    So the short answer is no, there is nothing you can do to your current mounting plate to make another braking assembly fit your current setup. What you have is pretty unique, and when the team and myself took a look at it we were all in agreement that the best step forward is to cut of your current flange and weld on a new one. Now this is a pretty intensive project and is going to require a special jig that is designed specifically for this, so this isn't something you're going to be...
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  • Adding Brakes To A 5 x 8 Utility Trailer With 5 Lug Hubs
    It may be possible to change our your 5 lug hubs for a 6 lug and add brakes. It ultimately comes down to the size of your axle/spindles and what hubs will fit on the spindle. We would need to confirm the axle capacity, and inner and outer bearing numbers in order to recommend hubs. You would also need to add on a brake flange like the # 4-35, if flanges are not present on the axle. Adding brake flanges is best done by a professional. For example, if you have a 3,500 lb axle, this uses...
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  • Parts Needed To Install Electric Trailer Brakes On a 2023 Carry-On 7x14 Single Axle Utility Trailer
    First you will need to verify if your 3,500lb axle on your 2023 Carry-On 7x14 trailer has the Brake Mounting Flange # 4-35 behind each of your hubs. If you do not you will need to take your axle to a trailer shop to have the flanges mounted on each side. If you already have the flanges here is a list of the parts you will need to add electric trailer brakes. Electric Trailer Brake Kit # AKEBRK-35-SA qty 1 Trailer Hub and Drum Assembly # AKHD-545-35-EZ-K qty 2 Junction Box and Installation...
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  • Replacement Disc Brakes For a DHM Boat Trailer With 2,860LB Axle Rating and 14" Diameter Wheels
    Based on the information you provided you most likely have a 10" disc brake kit like the Kodiak # KOD59FR. The only way to verify exactly what you have or will need to replace them is by contacting the trailer manufacturer with your VIN information or by disassembling one of your hubs to measure and verify the correct parts and sizes. This Kodiak attaches to a Mounting Flange # 4-35 with the bolt holes spread 2-7/8" vertically and horizontally. You will also need to check the spindle. The...
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  • Adding Electric Brakes To A Triton Boat Trailer With 10" Wheels
    I can certainly point you in the right direction. First and foremost we would want to verify that your axle does in fact have a brake flange. Some smaller axles do not come with brake flanges, and this will be required in order to install electric brakes. We do carry a brake mounting flange # 4-35 which can be fabricated to fit your axle if needed. We also need to verify what kind of axle is on your trailer. Specifically we need to know the inner and outer bearing sizes. This will tell...
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  • Parts Needed to Add Electric Brakes to Second Axle on Tandem Axle Trailer
    Hey Isaac! What kind of trailer do you have? The first thing you need to do is make sure that second axle has a brake flange. If you don't have a brake flange you will need to either replace the axle or have # 4-35 welded on at a local axle shop. Once that is taken care of you will need the Trailer Hub and Drum Assembly # AKHD-545-35-K along with etrailer Electric Trailer Brakes # AKEBRK-35-SA and # BRKH10B. If you want to stick with the Dexter brand we have the # 84546UC3-EZ along with...
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  • Brake Assembly Replacement Recommendation for Dexter Assemblies 36-19-47
    Based on what you described you have a standard 4-bolt trailer brake assembly bolt pattern. For brake assemblies that match that and the 4,400 lb axle capacity you have you'd want the part # K23-478-00 for the left hand side and part # K23-479-00 for the right hand side. For a brake flange you'd then want the part # 4-35 if you were also in need of that.
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  • Replacement 10 Inch x 1-1/2 Inch Trailer Brakes For 1998 Nash 20N With Welded On Brake Backing Plate
    Based on the images with the measurements you sent the Brake Shoe/Lining # bp04-065, Brake Spring Set # K71-362-00, and Magnet Kit # AKBRKR-M10 are the correct replacement parts for the brakes on your 1998 Nash 20N. We do have the Brake Mounting Flange # 4-35 which you can have welded to your axle. This will allow you to replace the Brake Assemblies # K23-472-473-00 which is typically easier and will help you if your brakes become damaged on the side of the road. Then you will be able...
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  • How to Determine the Correct Hub& Drum and Electric Brakes for 3,500 lb Axle on Trailer
    To determine the correct electric brakes you first need to determine the correct fit for your hub and drum. For a 3,500 lb axle that will depend on what bearings your current hub has. You will need to take apart your current hub assembly and look at the bearings themselves; wipe away the grease and you should be able to see the part number stamped directly on them. Additionally, you need to know your hub's wheel bolt pattern; if you do not know what it is I have added a help article which...
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  • Parts Needed to Add Electric Drum Brakes to a 16 Dual Axle Trailer
    To install electric brakes on your trailer you need brake mounting flanges, brake assemblies, hub and drum assemblies, trailer wiring for the brakes, a breakaway kit, and a brake controller installed in your vehicle. You do want to install brakes on both sides of the axle(s) otherwise your trailer will pull to one side when your brakes are applied. We also recommend installing brakes on all of the axles that you have on your trailer. This helps to ensure that you have enough stopping power,...
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  • How to Determine Correct Electric Trailer Brake Size
    We don't have any way of knowing the brakes you need for your Shorelander boat trailer but can tell you how to determine the right ones. To determine the brake assemblies that will fit your trailer, you need to know your axle's weight capacity, your mounting flange bolt pattern and the inside diameter and depth of your drum. For example, the Electric Trailer Brake Kit # AKEBRK-35-SA are for 3,500 lb axles, measure 10" diameter x 2-1/4" wide (so that is the drum size they fit in) and fit...
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  • Looking For a Replacement 15 Tire and Wheel With 5 on 5 Bolt Pattern
    From the pictures you provided, you do indeed have a 5 on 5 bolt pattern. This isn't the most common bolt pattern though so if you were thinking about replacing the hubs as well, I do recommend swapping to the much more common 5 on 4 1/2 bolt pattern. However, due to the corrosion present in the pictures, I suggest pulling one of the hubs off to verify your bearing numbers. If the trailer is older, there can be a few different ones that were used. If the Inner Bearing is an # L68149 (1.378"...
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  • Where does a Brake Flange need to be Welded on a Spindle
    Welding a brake flange on a spindle is not something we recommend most people doing. Most spindles have these welded on at the factory with specialized jigs and higher precision welding equipment that what even experienced do-it-yourselfers have. The flange needs to be welded on concentric and square. Square meaning the flange must be a true 90 degrees from the spindle and concentric meaning the gap around the spindle must be the same 360 degrees around. If not, the brakes will not wear...
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  • Replacement Brake Assembly Parts for 2800 lbs Philips/Dexter Axle with 1-1/4 Inch Deep Hubs
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  • Recommendation for Installation of a Brake Mounting Flange on a Trailer Spindle and Axle
    Welding a mounting flange, possible item # 4-35, is a very precise installation. The flanges need to be installed square and concentric to the hub and drum assembly and each other. If the flange is installed incorrectly rapid brake lining wear, improper braking, trailer dog legging, bearing failure, rapid tire wear and, worst of all, weakening of the axle can occur. Usually special jigs are used to install the flange. The jig will keep the flange square and concentric to the axle and...
    view full answer...


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