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

click to enlarge

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

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…

view full answer...

Answer 2

The MTI number on your 8-201 hubs is simply a casting number. It does not indicate any information about the hubs or have anything to do with the actual part number. I'm not surprised to hear you have different outer bearings between the two…

view full answer...

Answer 3

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.

view full answer...

Answer 4

Yes, the etrailer brake assembly part #AKEBRK-7R-SA would work to replace a Dexter 023-327-00 which is a passenger side self adjusting brake assembly. The matching left hand side would be the part #AKEBRK-7L-SA.

view full answer...

Answer 5

Some trailers are equipped with EZ Lube spindles, which have a grease fitting or zerk in the end of the spindle, and a small hole in the spindle that lets grease enter the interior of the hub and reach the bearings. This allows grease to be added to…

view full answer...

Answer 6

Yes, the mounting brackets included with the DeeMaxx Disc Brake Kit #DE72FR are also stainless steel.

view full answer...

Answer 7

The seal that comes with hub #8-201-9UC3-EZ is a 10-10 seal. For a pair use #RG06-090. These seals have an inner diameter of 2.125 inches and an outer diameter of 3.376. They are used with E-Z Lube and Oil 5,200, 6,000 and 7,000 LB Axles. I have…

view full answer...

Answer 8

The trailer will have a plate or sticker on it that will list 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 will list the weight capacity. You can…

view full answer...

Answer 9

I do have a hub and bearing assembly that will allow you to replace the hubs on your mobile home axle however, mobile home axles are intended for a one time single use only, therefore there is a limitation to readily available replacement parts. When…

view full answer...

Answer 10

The closest brake assemblies we offer to the dimensions you said you have are part #23-105-09 for the left hand, and #23-106-09 for the right. The 4-hole bolt pattern is 3-1/4 inches for the top two holes, 2-1/2 inches for the lower two holes and the…

view full answer...

Answer 11

Hello Dave. I recommend the DeeMaxx Disc Brake Kit #DE28YR. This uses a corrosion-resistant Maxx coat finish, which is similar to Dacromet or Zinc only better. So not as expensive as stainless, but still good rust resistance. These hubs have a 6 on…

view full answer...

Answer 12

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…

view full answer...

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

Product Page this Question was Asked From

Continue Researching