Converting Existing Hydraulic Drum Brakes on 2004 EZ Loader Boat Trailer to Disc Brakes

Question

Question:

Hi, I have a 2004 EZ Loader duel axle boat bunk trailer with 14 in tires and 10 in hubs. It has 5 lug nuts and 4 bolt holes for mounting the brake hardware. I have an inertia brake with brake drums on one axle. I would like to convert them to discs since they are completely shot and non functioning. Since the bearings are original the numbers are hard to make out. The grease seal is numbered 168255TC and measures 1.69 in. The inner bearing is, I believe, L68149 and measures 1.375 in. The outter bearing I cannot make out but maybe the last 3 as 649? but it measures 1.06 in. All measurements were from a caliper and from the axle. Can you recommend a conversion kit? I have the coupling but would need all else such as the lines. the trailer is approximately 23 ft. and hauls a 21 foot center console boat. Thanks

asked by: Frank R

0

Expert Reply:

Given the inside dimension you kindly provided, your outer bearing is a # L44649.

We have plenty of disc brake kits that would be compatible in various finishes. Going with the Kodiak # K2HR35DS in a Dactromet/Stainless Steel finish would provide maximum corrosion resistance. The kit includes the races, but the # L68149 and # L44649 bearings and # 168255TB grease seals are sold separately.

It sounds as if your current brake actuating coupler was intended for drum brakes, If that's the case, I wouldn't recommend reusing it because it wouldn't be capable of developing enough pressure to properly actuate disc brakes. The Dexter # 099-175-20 is rated for disc brakes, and features a 2 inch ball coupler as well as an electric lockout.

I've linked you to an FAQ article and an install video that I think you'll find helpful.

expert reply by: Mike L

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Answer 1

I had the bolt holes on the Dexter DX7.5L A-60 Brake Actuator #DX89FR measured and they are 5/8 of an inch from the bottom of the bracket to the center of the bolt holes.

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Answer 2

Yes we do have the inner member available for the Dexter DX 7.5L A-60 #DX89FR that you mentioned with the #DX99FR.

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Answer 3

If the bearing numbers are the same as what you have currently in your Reliable R1001 hub the Dexter hub part #84545BX would be the correct replacement. We don't have a cross reference for that brand of hub but if the bearing numbers match this…

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Answer 4

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 5

You can convert surge brakes to an electric over hydraulic braking system. To do this, you will need an electric over hydraulic actuator and a brake controller. For an electric over hydraulic actuator, I recommend looking at the Carlisle HydraStar…

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Answer 6

First you will need to remove the old hydraulic equipment. Remove the surge coupler or actuator, remove all the lines, and finally remove the brake assemblies. If you have 10 inch diameter hub and drums, you may need to replace those as well. If you…

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Answer 7

The owner's manual for the 2014 Ford F-150 only shows the gross combined weight rating which is the most that the truck and trailer can weigh together. So I checked the towing guide from Ford for the 2014 model year. Capacity is also dependent…

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Answer 8

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 9

The only differences between the Demco Trailer Coupler #DM14976-52 and #DM88XR are the colors and the mounting bracket design. The part DM14976-52 is silver and has a straight, or no-drop, design with the bottom of the coupler being towards the top…

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Answer 10

Yes, you can weld on the Dexter DX7.5L A-60 Brake Actuator w Electric Lockout - Bolt On - Disc - 2" Ball - Zinc - 7.5K item #DX56FR you referenced. You will want to make sure you remove the zinc coating and get down to the bare metal. I have…

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Answer 11

Trailer wheel bearings are specific to the spindle that is installed on the axle that is on your trailer. You will need to safely support the trailer, remove the wheel and tire, remove the grease cap, remove the cotter pin and washer that secures the…

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Answer 12

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

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Converting Existing Hydraulic Drum Brakes on 2004 EZ Loader Boat Trailer to Disc Brakes

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