How to Convert From Electric to Disc Brakes on Tandem Axle Trailer

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Question:

Yes I have a Question Im wanting to convert My electric drum brakes to hydraulic disk brakes do yall have a package for 2 axles thanks

asked by: Josh

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Expert Reply:

We can get you all the parts needed to convert from electric drum brakes to disc brakes on you tandem axle trailer, but there's a bit of information needed in order to do this. First, since you will be replacing your hubs, you have to find the right disc brake hub, and in order to do that you'll need to know the weight rating of your axle, and also 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. If you are unable to find them, you need to use digital caliper and measure your spindle to the thousandths of an inch where the bearings and grease seal ride. You can use the photo I've attached to see exactly where you need to measure.

For example, if you have a 3,500 lb axle with inner bearing L68149 and outer bearing L44649 you would need the Kodiak Disc Brake Kit # K2HR35D.

If you let me know what your axle capacity and bearing numbers are I can find the right kit for you, otherwise I have added a link below to our selection.

After that, you will also need a brake line kit for a tandem axle trailer, the Kodiak Hydraulic Brake Line Kit - 15 feet # 15TA-BLKIT, 20 feet # 20TA-BLKIT or 25 feet # HS496-252.

Finally, if you don't have one, you'll need a disc brake actuator with the correct capacity such as the Demco Hydraulic Brake Actuator w/ Electric Lockout - Disc - Zinc - 2" Ball - 7,000 lbs # DM62VR. I have added a link below to our selection of disc brake actuators as well so you can choose the right one for your trailer.

expert reply by: Kyle S

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Where to Measure Spindle For Bearings & Grease Seal For Disc Brake Hub
(click to enlarge)

Answer 1

The DB-42 is an older style of UFP 3,500 lb axle disc brake components. The Kodiak kits like the part #K2HR35D will fit in replacement of that and would be an upgrade so this would be a great solution. It comes with everything you'd need to…

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Answer 2

Hey Ken, so what you have on your trailer is a 3,500 lb axle which we can help with but since the calipers you have are a brand we don't carry you would need to go with an all new kit since nothing we have would let you reuse them since the…

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Answer 3

When it comes to upgrading your UFP DB-42 brakes The Kodiak Disc Brake Kit - 10 inch Hub/Rotor - 5 on 4-1/2 - Dacromet - 3,500 pounds #K2HR35D will upgrade your braking system. This kit is coated with a Dacromet coating that helps prevents corrosion…

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Answer 4

Hello Eric, The #K2R35DKG is Dacromet-coated, and the calipers are treated with KodaGuard. The #K2R35DS, on the other hand, is made entirely of stainless steel, hence the higher price. If you're in an area where road salt is common or if…

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Answer 5

In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. Since the figure you came up with doesn't match any of…

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Answer 6

To convert your EZLoader trailer to disc brakes you will need a couple things. I called my contact at EZLoader and with the VIN you supplied they told me you have a 3,500 lb axle on your trailer and they told me what size bearings your trailer uses.…

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Answer 7

Hey Jeff, are you absolutely sure the bearing numbers are both L68149 and not just the inner bearing? There isn't a hub that uses both the L68149 for inner and outer but a 3,500 lb axle would use it for the inner as well as the part #L44649 for…

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Answer 8

Since the pin weight of your camper is 2.1k, I recommend going with the LoadLifter 5000 opposed to the 7500. While technically there is not reason you couldn't use the 7500 kit, it really is not necessary for a camper like yours. Generally the…

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Answer 9

Hey Steve, welcome back! The difference between these two Hellwig Adjustable Big Wig Rear Anti-Sway Bars is the fitment. The #HE94FR is designed for 4WD models and the #HE97MR is designed for 2WD models. Since your 2019 F-250 is 4WD you need the…

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Answer 10

You're already on the right track with everything you looked at. Your 2018 Thor ACE 30.3 has a GVWR of 18,000 lbs so I recommend the following: -Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets for Class A Motorhomes #RM33RR…

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Answer 11

Hi Todd, I know exactly the feeling you’re describing, and you’re definitely not alone. That floaty, pushy feeling at highway speeds, especially when trucks pass, is really common on the Sprinter 3500 chassis with a taller coach like your Tiburon,…

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How to Convert From Electric to Disc Brakes on Tandem Axle Trailer

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