How to Measure to Determine the Size Trailer Brakes Needed For Hydraulic Drum Replacement

Question

Question:

Where does the measurement come from to determine if I have 2-1/4 or 2-1/2inch brakes? I need to replace the brakes on a Road King boat trailer with 3700# axles. It seems the wheel cylinder is blown out and rather than buying piece parts you kits seem to be the best option.

asked by: Chris

1

Helpful Expert Reply:

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the # T4071600-500 that you referenced.

expert reply by: Jameson C

1

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Matt O.

8/7/2020

12 x 2.5 drum trisaler brakes i just want the whole brake whitout botor i need probably 5

Reply

Jon G.

8/18/2020

Sounds like you're looking for the Brake Kit # 23-428-429 which is rated for a 7,200 lb axle. This kit comes with both the right and left brake assemblies and it doesn't come with the hub and drum - just the brakes.

Reply

Answer 1

Hey Erik, so if the coupler on your 2007 MasterCraft boat trailer is labeled a UFP or a Dexter actuator and looks like the #DX99FR then yes this inner member is correct replacement to get it working again. There isn&#39;t a way to look up…

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Answer 2

You will need to do some measuring to determine if the 10 Inch Electric Brake Assembly LH, item #AKEBRK-35L, is the correct assembly for your trailer. Measure the diameter of the mounted brake shoe, the width of the lining and the distance between…

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Answer 3

Based on what information I could find about AL-KO 8490 hub and drums, it is rated for 3,500 pound axles, has a 5 on 4-1/2 bolt pattern, and is a 10 by 2-1/4 inch drum. If this is the case, we have several options for you. I have attached a link to…

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Answer 4

I would be happy to help you find the correct replacement braking assemblies for your 2002 Keystone Tailgator 210RR, but we do not have a breakdown of the specific components used on a trailer. You will need to remove on of your hubs and measure…

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Answer 5

The piece you&#39;re referring to in the #LC26VR kit is called a &quot;shoe&quot;. This part is plastic with foam pads on each end that helps cushion the motor bracket as it slides back and forth to either end of the track.

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Answer 6

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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Answer 7

The Dexter DX7.5L A-60 Brake Actuator part #DX89FR for disc or part #DX33FR for drum will work to replace the surge coupler of your Mastercraft boat trailer. I looked up your trailer and was not able to determine if it had disc or drum brakes which…

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Answer 8

The reason it says not to put it on a boat trailer is because the Karrier ST205/75R14 Radial Trailer Tire item #AM32161 you referenced is on a steel wheel. For a spare tire that is better suited for a boat trailer I recommend the Loadstar…

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Answer 9

Because the face of the magnet rides against the armature (inside) surface of the brake drum, any grooves that had previously been worn into the armature surface will cause the magnet to wear unevenly. For optimal braking performance, you want…

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Answer 10

You should be able to change out the backing plates, hubs, and brakes on your trailer so you can upgrade to higher rated assemblies, but I do recommend checking a couple things on your tow vehicle first. It's possible that your weak braking…

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Answer 11

There is always a way to make it work. I can't recommend doing that as I have not tested it and I do not offer a product like that with the exception of the Dexter Trailer Springs Over-Under Conversion Kit part #K71-384-00. This will give you…

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Answer 12

Hubs and drums that can be turned (machined) will have a specification on how much they can be turned cast into the metal of the drum somewhere. Otherwise it is at the brake shop's discretion. Drums do not have to be turned unless there is…

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How to Measure to Determine the Size Trailer Brakes Needed For Hydraulic Drum Replacement

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